231130123100 has 36 divisors (see below), whose sum is σ = 501988370688. Its totient is φ = 92371680000.

The previous prime is 231130123079. The next prime is 231130123109. The reversal of 231130123100 is 1321031132.

It is a super-2 number, since 2×231130123100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231130123109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 888941 + ... + 1119140.

It is an arithmetic number, because the mean of its divisors is an integer number (13944121408).

Almost surely, 2^231130123100 is an apocalyptic number.

231130123100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231130123100 is an abundant number, since it is smaller than the sum of its proper divisors (270858247588).

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

231130123100 is a wasteful number, since it uses less digits than its factorization.

231130123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009246 (or 2009239 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231130123100 its reverse (1321031132), we get a palindrome (232451154232).

The spelling of 231130123100 in words is "two hundred thirty-one billion, one hundred thirty million, one hundred twenty-three thousand, one hundred".