231310123032 has 128 divisors (see below), whose sum is σ = 617276712960. Its totient is φ = 72114831360.

The previous prime is 231310123027. The next prime is 231310123049. The reversal of 231310123032 is 230321013132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2598168 + ... + 2685720.

It is an arithmetic number, because the mean of its divisors is an integer number (4822474320).

Almost surely, 2^231310123032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231310123032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308638356480).

231310123032 is an abundant number, since it is smaller than the sum of its proper divisors (385966589928).

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

231310123032 is a wasteful number, since it uses less digits than its factorization.

231310123032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87713 (or 87709 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231310123032 its reverse (230321013132), we get a palindrome (461631136164).

The spelling of 231310123032 in words is "two hundred thirty-one billion, three hundred ten million, one hundred twenty-three thousand, thirty-two".