231210012132 has 72 divisors (see below), whose sum is σ = 640363563840. Its totient is φ = 69757657920.

The previous prime is 231210012119. The next prime is 231210012157.

231210012132 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1184128 + ... + 1365495.

Almost surely, 2^231210012132 is an apocalyptic number.

231210012132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231210012132 is an abundant number, since it is smaller than the sum of its proper divisors (409153551708).

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

231210012132 is a wasteful number, since it uses less digits than its factorization.

231210012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549873 (or 2549868 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 2312100 and 12132, that added together give a palindrome (2324232).

The spelling of 231210012132 in words is "two hundred thirty-one billion, two hundred ten million, twelve thousand, one hundred thirty-two".