231333111112 has 16 divisors (see below), whose sum is σ = 433787082300. Its totient is φ = 115656555840.

The previous prime is 231333111101. The next prime is 231333111131. The reversal of 231333111112 is 211111333132.

It can be written as a sum of positive squares in 2 ways, for example, as 230943680356 + 389430756 = 480566^2 + 19734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151187 + ... + 1337122.

Almost surely, 2^231333111112 is an apocalyptic number.

It is an amenable number.

231333111112 is a deficient number, since it is larger than the sum of its proper divisors (202453971188).

231333111112 is a wasteful number, since it uses less digits than its factorization.

231333111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499936 (or 2499932 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

Adding to 231333111112 its reverse (211111333132), we get a palindrome (442444444244).

The spelling of 231333111112 in words is "two hundred thirty-one billion, three hundred thirty-three million, one hundred eleven thousand, one hundred twelve".