231023132113 has 16 divisors (see below), whose sum is σ = 240282599040. Its totient is φ = 221974415104.

The previous prime is 231023132089. The next prime is 231023132149. The reversal of 231023132113 is 311231320132.

It is a cyclic number.

It is not a de Polignac number, because 231023132113 - 2²¹ = 231021034961 is a prime.

It is a super-5 number, since 5×231023132113⁵ (a number of 58 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231023132213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681945 + ... + 962857.

It is an arithmetic number, because the mean of its divisors is an integer number (15017662440).

Almost surely, 2^231023132113 is an apocalyptic number.

It is an amenable number.

231023132113 is a deficient number, since it is larger than the sum of its proper divisors (9259466927).

231023132113 is a wasteful number, since it uses less digits than its factorization.

231023132113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281288.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231023132113 its reverse (311231320132), we get a palindrome (542254452245).

The spelling of 231023132113 in words is "two hundred thirty-one billion, twenty-three million, one hundred thirty-two thousand, one hundred thirteen".