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131130123121230 = 235172218491158977
BaseRepresentation
bin11101110100001100011100…
…011010000111001001001110
3122012021220202202001011110020
4131310030130122013021032
5114141413443004334410
61142520202534323010
736422560456556052
oct3564143432071116
9565256682034406
10131130123121230
1138866a77a46032
1212859a90ab9466
1358226960a303c
142454a3619dc62
151025ede893a70
hex77431c68724e

131130123121230 has 64 divisors (see below), whose sum is σ = 333226573012800. Its totient is φ = 32910912978944.

The previous prime is 131130123121187. The next prime is 131130123121343. The reversal of 131130123121230 is 32121321031131.

It is a self number, because there is not a number n which added to its sum of digits gives 131130123121230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112563502 + ... + 113722478.

It is an arithmetic number, because the mean of its divisors is an integer number (5206665203325).

Almost surely, 2131130123121230 is an apocalyptic number.

131130123121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131130123121230 is an abundant number, since it is smaller than the sum of its proper divisors (202096449891570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131130123121230 is a wasteful number, since it uses less digits than its factorization.

131130123121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380853.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 131130123121230 its reverse (32121321031131), we get a palindrome (163251444152361).

The spelling of 131130123121230 in words is "one hundred thirty-one trillion, one hundred thirty billion, one hundred twenty-three million, one hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 221849 443698 665547 1109245 1158977 1331094 2218490 2317954 3327735 3476931 3771433 5794885 6655470 6953862 7542866 11314299 11589770 17384655 18857165 19702609 22628598 34769310 37714330 39405218 56571495 59107827 98513045 113142990 118215654 197026090 295539135 591078270 257117888473 514235776946 771353665419 1285589442365 1542707330838 2571178884730 3856768327095 4371004104041 7713536654190 8742008208082 13113012312123 21855020520205 26226024624246 43710041040410 65565061560615 131130123121230