231301331112 has 32 divisors (see below), whose sum is σ = 580340901600. Its totient is φ = 76822100544.

The previous prime is 231301331087. The next prime is 231301331113. The reversal of 231301331112 is 211133103132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231301331113) 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, 17389662 + ... + 17402957.

It is an arithmetic number, because the mean of its divisors is an integer number (18135653175).

Almost surely, 2^231301331112 is an apocalyptic number.

It is an amenable number.

231301331112 is an abundant number, since it is smaller than the sum of its proper divisors (349039570488).

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

231301331112 is a wasteful number, since it uses less digits than its factorization.

231301331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34792905 (or 34792901 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231301331112 its reverse (211133103132), we get a palindrome (442434434244).

The spelling of 231301331112 in words is "two hundred thirty-one billion, three hundred one million, three hundred thirty-one thousand, one hundred twelve".