231332212311000 has 128 divisors (see below), whose sum is σ = 721762609651200. Its totient is φ = 61688067964800.

The previous prime is 231332212310939. The next prime is 231332212311007. The reversal of 231332212311000 is 113212233132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231332212311007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464760261 + ... + 465257739.

It is an arithmetic number, because the mean of its divisors is an integer number (5638770387900).

Almost surely, 2^{231332212311000} is an apocalyptic number.

231332212311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231332212311000 is an abundant number, since it is smaller than the sum of its proper divisors (490430397340200).

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

231332212311000 is a wasteful number, since it uses less digits than its factorization.

231332212311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652506 (or 652492 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 231332212311000 its reverse (113212233132), we get a palindrome (231445424544132).

The spelling of 231332212311000 in words is "two hundred thirty-one trillion, three hundred thirty-two billion, two hundred twelve million, three hundred eleven thousand".