1310919960 has 128 divisors (see below), whose sum is σ = 4690068480. Its totient is φ = 286606848.

The previous prime is 1310919959. The next prime is 1310919977. The reversal of 1310919960 is 699190131.

It is a happy number.

It is a super-2 number, since 2×1310919960² = 3437022283052803200, 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 31 ways as a sum of consecutive naturals, for example, 14607 + ... + 53246.

It is an arithmetic number, because the mean of its divisors is an integer number (36641160).

Almost surely, 2^1310919960 is an apocalyptic number.

1310919960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310919960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345034240).

1310919960 is an abundant number, since it is smaller than the sum of its proper divisors (3379148520).

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

1310919960 is a wasteful number, since it uses less digits than its factorization.

1310919960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67897 (or 67893 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 1310919960 is about 36206.6286748711. The cubic root of 1310919960 is about 1094.4402551901.

The spelling of 1310919960 in words is "one billion, three hundred ten million, nine hundred nineteen thousand, nine hundred sixty".