1311372260 has 48 divisors (see below), whose sum is σ = 3006787392. Its totient is φ = 476457600.

The previous prime is 1311372259. The next prime is 1311372263. The reversal of 1311372260 is 622731131.

It is not an unprimeable number, because it can be changed into a prime (1311372263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407819 + ... + 411021.

It is an arithmetic number, because the mean of its divisors is an integer number (62641404).

Almost surely, 2^1311372260 is an apocalyptic number.

1311372260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311372260 is an abundant number, since it is smaller than the sum of its proper divisors (1695415132).

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

1311372260 is a wasteful number, since it uses less digits than its factorization.

1311372260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084 (or 5082 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1311372260 is about 36212.8742300304. The cubic root of 1311372260 is about 1094.5661104222.

The spelling of 1311372260 in words is "one billion, three hundred eleven million, three hundred seventy-two thousand, two hundred sixty".