1331593012 has 12 divisors (see below), whose sum is σ = 2330543236. Its totient is φ = 665723520.

The previous prime is 1331592967. The next prime is 1331593019. The reversal of 1331593012 is 2103951331.

It can be written as a sum of positive squares in 2 ways, for example, as 1248491556 + 83101456 = 35334^2 + 9116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331593019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62812 + ... + 81292.

Almost surely, 2^1331593012 is an apocalyptic number.

It is an amenable number.

1331593012 is a deficient number, since it is larger than the sum of its proper divisors (998950224).

1331593012 is a wasteful number, since it uses less digits than its factorization.

1331593012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36498 (or 36496 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 1331593012 is about 36490.9990545614. Note that the first 3 decimals coincide. The cubic root of 1331593012 is about 1100.1633399316.

The spelling of 1331593012 in words is "one billion, three hundred thirty-one million, five hundred ninety-three thousand, twelve".