1331315560 has 64 divisors (see below), whose sum is σ = 3338625600. Its totient is φ = 474817536.

The previous prime is 1331315539. The next prime is 1331315563. The reversal of 1331315560 is 655131331.

It is a super-2 number, since 2×1331315560² = 3544802240596227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331315563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38602 + ... + 64441.

It is an arithmetic number, because the mean of its divisors is an integer number (52166025).

Almost surely, 2^1331315560 is an apocalyptic number.

1331315560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331315560 is an abundant number, since it is smaller than the sum of its proper divisors (2007310040).

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

1331315560 is a wasteful number, since it uses less digits than its factorization.

1331315560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103090 (or 103086 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 1331315560 is about 36487.1972066916. The cubic root of 1331315560 is about 1100.0869242604.

Adding to 1331315560 its reverse (655131331), we get a palindrome (1986446891).

The spelling of 1331315560 in words is "one billion, three hundred thirty-one million, three hundred fifteen thousand, five hundred sixty".