231211330013012 has 48 divisors (see below), whose sum is σ = 405310123572480. Its totient is φ = 115408660992000.

The previous prime is 231211330012979. The next prime is 231211330013057. The reversal of 231211330013012 is 210310033112132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41893697189 + ... + 41893702707.

It is an arithmetic number, because the mean of its divisors is an integer number (8443960907760).

Almost surely, 2^{231211330013012} is an apocalyptic number.

It is an amenable number.

231211330013012 is a deficient number, since it is larger than the sum of its proper divisors (174098793559468).

231211330013012 is a wasteful number, since it uses less digits than its factorization.

231211330013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752 (or 12750 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231211330013012 its reverse (210310033112132), we get a palindrome (441521363125144).

The spelling of 231211330013012 in words is "two hundred thirty-one trillion, two hundred eleven billion, three hundred thirty million, thirteen thousand, twelve".