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131010334012420 = 2259562168505001
BaseRepresentation
bin11101110010011100111000…
…011010111011010000000100
3122011212110120102200221021121
4131302130320122323100010
5114132433131001344140
61142345152214123324
736411120131131552
oct3562347032732004
9564773512627247
10131010334012420
1138820197132655
121283a81b950544
1358142b57b7375
14244cd10c72bd2
151022d2d19964a
hex7727386bb404

131010334012420 has 24 divisors (see below), whose sum is σ = 275124582652248. Its totient is φ = 52403584800000.

The previous prime is 131010334012387. The next prime is 131010334012471. The reversal of 131010334012420 is 24210433010131.

It can be written as a sum of positive squares in 4 ways, for example, as 31149525542976 + 99860808469444 = 5581176^2 + 9993038^2 .

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 7 ways as a sum of consecutive naturals, for example, 32340081 + ... + 36164920.

It is an arithmetic number, because the mean of its divisors is an integer number (11463524277177).

Almost surely, 2131010334012420 is an apocalyptic number.

131010334012420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131010334012420 is an abundant number, since it is smaller than the sum of its proper divisors (144114248639828).

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

131010334012420 is a wasteful number, since it uses less digits than its factorization.

131010334012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68600631 (or 68600629 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131010334012420 its reverse (24210433010131), we get a palindrome (155220767022551).

The spelling of 131010334012420 in words is "one hundred thirty-one trillion, ten billion, three hundred thirty-four million, twelve thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 95621 191242 382484 478105 956210 1912420 68505001 137010002 274020004 342525005 685050010 1370100020 6550516700621 13101033401242 26202066802484 32752583503105 65505167006210 131010334012420