231112001012 has 24 divisors (see below), whose sum is σ = 404985511560. Its totient is φ = 115401922560.

The previous prime is 231112000969. The next prime is 231112001039. The reversal of 231112001012 is 210100211132.

It can be written as a sum of positive squares in 4 ways, for example, as 77615731216 + 153496269796 = 278596^2 + 391786^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24747608 + ... + 24756944.

It is an arithmetic number, because the mean of its divisors is an integer number (16874396315).

Almost surely, 2^231112001012 is an apocalyptic number.

It is an amenable number.

231112001012 is a deficient number, since it is larger than the sum of its proper divisors (173873510548).

231112001012 is a wasteful number, since it uses less digits than its factorization.

231112001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16931 (or 16929 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 231112001012 its reverse (210100211132), we get a palindrome (441212212144).

The spelling of 231112001012 in words is "two hundred thirty-one billion, one hundred twelve million, one thousand, twelve".