231011033312000 has 144 divisors (see below), whose sum is σ = 577716592444992. Its totient is φ = 92044859801600.

The previous prime is 231011033311969. The next prime is 231011033312039. The reversal of 231011033312000 is 213330110132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5820932 + ... + 22268931.

It is an arithmetic number, because the mean of its divisors is an integer number (4011920780868).

Almost surely, 2^{231011033312000} is an apocalyptic number.

231011033312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231011033312000 is an abundant number, since it is smaller than the sum of its proper divisors (346705559132992).

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

231011033312000 is an equidigital number, since it uses as much as digits as its factorization.

231011033312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28090151 (or 28090127 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231011033312000 its reverse (213330110132), we get a palindrome (231224363422132).

The spelling of 231011033312000 in words is "two hundred thirty-one trillion, eleven billion, thirty-three million, three hundred twelve thousand".