231231320000012 has 24 divisors (see below), whose sum is σ = 406228773076896. Its totient is φ = 115166032783488.

The previous prime is 231231319999973. The next prime is 231231320000027. The reversal of 231231320000012 is 210000023132132.

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, 2535758 + ... + 21653930.

It is an arithmetic number, because the mean of its divisors is an integer number (16926198878204).

Almost surely, 2^{231231320000012} is an apocalyptic number.

It is an amenable number.

231231320000012 is a deficient number, since it is larger than the sum of its proper divisors (174997453076884).

231231320000012 is a wasteful number, since it uses less digits than its factorization.

231231320000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19129937 (or 19129935 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231231320000012 its reverse (210000023132132), we get a palindrome (441231343132144).

The spelling of 231231320000012 in words is "two hundred thirty-one trillion, two hundred thirty-one billion, three hundred twenty million, twelve", and thus it is an aban number.