1231372460 has 12 divisors (see below), whose sum is σ = 2585882208. Its totient is φ = 492548976.

The previous prime is 1231372453. The next prime is 1231372481. The reversal of 1231372460 is 642731321.

It is a happy 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, 30784292 + ... + 30784331.

It is an arithmetic number, because the mean of its divisors is an integer number (215490184).

Almost surely, 2^1231372460 is an apocalyptic number.

1231372460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231372460 is an abundant number, since it is smaller than the sum of its proper divisors (1354509748).

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

1231372460 is a wasteful number, since it uses less digits than its factorization.

1231372460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61568632 (or 61568630 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1231372460 is about 35090.9170584070. The cubic root of 1231372460 is about 1071.8396338321.

The spelling of 1231372460 in words is "one billion, two hundred thirty-one million, three hundred seventy-two thousand, four hundred sixty".