1231102132 has 48 divisors (see below), whose sum is σ = 2409702400. Its totient is φ = 549750240.

The previous prime is 1231102129. The next prime is 1231102189. The reversal of 1231102132 is 2312011321.

It is a super-2 number, since 2×1231102132² = 3031224918829890848, which 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270169 + ... + 274687.

Almost surely, 2^1231102132 is an apocalyptic number.

It is an amenable number.

1231102132 is a deficient number, since it is larger than the sum of its proper divisors (1178600268).

1231102132 is a wasteful number, since it uses less digits than its factorization.

1231102132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1231102132 is about 35087.0650240227. The cubic root of 1231102132 is about 1071.7611930463.

Adding to 1231102132 its reverse (2312011321), we get a palindrome (3543113453).

The spelling of 1231102132 in words is "one billion, two hundred thirty-one million, one hundred two thousand, one hundred thirty-two".