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131110031022 = 23175092525329
BaseRepresentation
bin111101000011011000…
…1000100111010101110
3110112102021122122220220
41322012301010322232
54122003131443042
6140121530552210
712321012606255
oct1720661047256
9415367578826
10131110031022
1150670215943
12214b0598666
13c495b58219
1464baa9979c
15362552b8ec
hex1e86c44eae

131110031022 has 32 divisors (see below), whose sum is σ = 278190352800. Its totient is φ = 41051731968.

The previous prime is 131110031021. The next prime is 131110031029. The reversal of 131110031022 is 220130011131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131110030992 and 131110031010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131110031021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210747 + ... + 1314582.

It is an arithmetic number, because the mean of its divisors is an integer number (8693448525).

Almost surely, 2131110031022 is an apocalyptic number.

131110031022 is an abundant number, since it is smaller than the sum of its proper divisors (147080321778).

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

131110031022 is a wasteful number, since it uses less digits than its factorization.

131110031022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525860.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131110031022 its reverse (220130011131), we get a palindrome (351240042153).

The spelling of 131110031022 in words is "one hundred thirty-one billion, one hundred ten million, thirty-one thousand, twenty-two".

Divisors: 1 2 3 6 17 34 51 102 509 1018 1527 3054 8653 17306 25959 51918 2525329 5050658 7575987 15151974 42930593 85861186 128791779 257583558 1285392461 2570784922 3856177383 7712354766 21851671837 43703343674 65555015511 131110031022