1231310332 has 24 divisors (see below), whose sum is σ = 2519893376. Its totient is φ = 515431728.

The previous prime is 1231310317. The next prime is 1231310393. The reversal of 1231310332 is 2330131321.

It is a super-2 number, since 2×1231310332² = 3032250267379900448, which 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, 510138 + ... + 512545.

Almost surely, 2^1231310332 is an apocalyptic number.

It is an amenable number.

1231310332 is an abundant number, since it is smaller than the sum of its proper divisors (1288583044).

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

1231310332 is a wasteful number, since it uses less digits than its factorization.

1231310332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022737 (or 1022735 counting only the distinct ones).

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

The square root of 1231310332 is about 35090.0318039183. The cubic root of 1231310332 is about 1071.8216072331.

Adding to 1231310332 its reverse (2330131321), we get a palindrome (3561441653).

The spelling of 1231310332 in words is "one billion, two hundred thirty-one million, three hundred ten thousand, three hundred thirty-two".