231332031100 has 36 divisors (see below), whose sum is σ = 507165688624. Its totient is φ = 91578862080.

The previous prime is 231332031089. The next prime is 231332031113. The reversal of 231332031100 is 1130233132.

It is a super-2 number, since 2×231332031100² (a number of 24 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 11914632 + ... + 11934031.

Almost surely, 2^231332031100 is an apocalyptic number.

231332031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231332031100 is an abundant number, since it is smaller than the sum of its proper divisors (275833657524).

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

231332031100 is a wasteful number, since it uses less digits than its factorization.

231332031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23848774 (or 23848767 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231332031100 its reverse (1130233132), we get a palindrome (232462264232).

The spelling of 231332031100 in words is "two hundred thirty-one billion, three hundred thirty-two million, thirty-one thousand, one hundred".