231000331132 has 24 divisors (see below), whose sum is σ = 413711975600. Its totient is φ = 112797691776.

The previous prime is 231000331109. The next prime is 231000331153. The reversal of 231000331132 is 231133000132.

It is a super-2 number, since 2×231000331132² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131994 + ... + 1320382.

Almost surely, 2^231000331132 is an apocalyptic number.

It is an amenable number.

231000331132 is a deficient number, since it is larger than the sum of its proper divisors (182711644468).

231000331132 is a wasteful number, since it uses less digits than its factorization.

231000331132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195565 (or 195563 counting only the distinct ones).

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

Adding to 231000331132 its reverse (231133000132), we get a palindrome (462133331264).

The spelling of 231000331132 in words is "two hundred thirty-one billion, three hundred thirty-one thousand, one hundred thirty-two".