231112401013 has 8 divisors (see below), whose sum is σ = 251173676600. Its totient is φ = 211377325248.

The previous prime is 231112400993. The next prime is 231112401017. The reversal of 231112401013 is 310104211132.

It can be written as a sum of positive squares in 4 ways, for example, as 81078576049 + 150033824964 = 284743^2 + 387342^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231112401013 is a prime.

It is a super-3 number, since 3×231112401013³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231112401017) by changing a digit.

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, 81548478 + ... + 81551311.

It is an arithmetic number, because the mean of its divisors is an integer number (31396709575).

Almost surely, 2^231112401013 is an apocalyptic number.

It is an amenable number.

231112401013 is a deficient number, since it is larger than the sum of its proper divisors (20061275587).

231112401013 is a wasteful number, since it uses less digits than its factorization.

231112401013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163099911.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 231112401013 its reverse (310104211132), we get a palindrome (541216612145).

The spelling of 231112401013 in words is "two hundred thirty-one billion, one hundred twelve million, four hundred one thousand, thirteen".