231332130132 has 12 divisors (see below), whose sum is σ = 539774970336. Its totient is φ = 77110710040.

The previous prime is 231332130101. The next prime is 231332130163. The reversal of 231332130132 is 231031233132.

It is an interprime number because it is at equal distance from previous prime (231332130101) and next prime (231332130163).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9638838744 + ... + 9638838767.

It is an arithmetic number, because the mean of its divisors is an integer number (44981247528).

Almost surely, 2^231332130132 is an apocalyptic number.

It is an amenable number.

231332130132 is an abundant number, since it is smaller than the sum of its proper divisors (308442840204).

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

231332130132 is a wasteful number, since it uses less digits than its factorization.

231332130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19277677518 (or 19277677516 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231332130132 its reverse (231031233132), we get a palindrome (462363363264).

The spelling of 231332130132 in words is "two hundred thirty-one billion, three hundred thirty-two million, one hundred thirty thousand, one hundred thirty-two".