231133012000 has 96 divisors (see below), whose sum is σ = 619520638464. Its totient is φ = 84048352000.

The previous prime is 231133011997. The next prime is 231133012001. The reversal of 231133012000 is 210331132.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (231133012001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2582512 + ... + 2670511.

It is an arithmetic number, because the mean of its divisors is an integer number (6453339984).

Almost surely, 2^231133012000 is an apocalyptic number.

231133012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231133012000 is an abundant number, since it is smaller than the sum of its proper divisors (388387626464).

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

231133012000 is a wasteful number, since it uses less digits than its factorization.

231133012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253059 (or 5253041 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 231133012000 its reverse (210331132), we get a palindrome (231343343132).

The spelling of 231133012000 in words is "two hundred thirty-one billion, one hundred thirty-three million, twelve thousand".