231233110231120 has 160 divisors (see below), whose sum is σ = 557878113265536. Its totient is φ = 89063919360000.

The previous prime is 231233110231117. The next prime is 231233110231129. The reversal of 231233110231120 is 21132011332132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231233110231129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115653535 + ... + 117635905.

Almost surely, 2^{231233110231120} is an apocalyptic number.

231233110231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231233110231120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278939056632768).

231233110231120 is an abundant number, since it is smaller than the sum of its proper divisors (326645003034416).

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

231233110231120 is a wasteful number, since it uses less digits than its factorization.

231233110231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982829 (or 1982823 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 231233110231120 its reverse (21132011332132), we get a palindrome (252365121563252).

The spelling of 231233110231120 in words is "two hundred thirty-one trillion, two hundred thirty-three billion, one hundred ten million, two hundred thirty-one thousand, one hundred twenty".