231321020308 has 24 divisors (see below), whose sum is σ = 463268120000. Its totient is φ = 99003420288.

The previous prime is 231321020267. The next prime is 231321020383. The reversal of 231321020308 is 803020123132.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5568933 + ... + 5610316.

Almost surely, 2^231321020308 is an apocalyptic number.

231321020308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231321020308 is an abundant number, since it is smaller than the sum of its proper divisors (231947099692).

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

231321020308 is a wasteful number, since it uses less digits than its factorization.

231321020308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11179999 (or 11179997 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 231321020308 in words is "two hundred thirty-one billion, three hundred twenty-one million, twenty thousand, three hundred eight".