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31234113023 = 314672157499
BaseRepresentation
bin11101000101101100…
…101011110111111111
32222121202111100011212
4131011230223313333
51002431413104043
622203155235035
72154003403001
oct350554536777
988552440155
1031234113023
111227892a453
1260782a8a7b
132c39c716a9
1417242d8371
15c2c152018
hex745b2bdff

31234113023 has 8 divisors (see below), whose sum is σ = 32310720000. Its totient is φ = 30161822040.

The previous prime is 31234113019. The next prime is 31234113041. The reversal of 31234113023 is 32031143213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31234113023 - 22 = 31234113019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31234113023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234113083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064273 + ... + 1093226.

It is an arithmetic number, because the mean of its divisors is an integer number (4038840000).

Almost surely, 231234113023 is an apocalyptic number.

31234113023 is a deficient number, since it is larger than the sum of its proper divisors (1076606977).

31234113023 is a wasteful number, since it uses less digits than its factorization.

31234113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157997.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31234113023 its reverse (32031143213), we get a palindrome (63265256236).

The spelling of 31234113023 in words is "thirty-one billion, two hundred thirty-four million, one hundred thirteen thousand, twenty-three".

Divisors: 1 31 467 14477 2157499 66882469 1007552033 31234113023