1313104056 has 128 divisors (see below), whose sum is σ = 3697263360. Its totient is φ = 385228800.

The previous prime is 1313104031. The next prime is 1313104061. The reversal of 1313104056 is 6504013131.

It is a super-2 number, since 2×1313104056² = 3448484523767302272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1078360 + ... + 1079576.

It is an arithmetic number, because the mean of its divisors is an integer number (28884870).

Almost surely, 2^1313104056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313104056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848631680).

1313104056 is an abundant number, since it is smaller than the sum of its proper divisors (2384159304).

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

1313104056 is a wasteful number, since it uses less digits than its factorization.

1313104056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1313104056 is about 36236.7776713107. Note that the first 3 decimals coincide. The cubic root of 1313104056 is about 1095.0477258654.

Adding to 1313104056 its reverse (6504013131), we get a palindrome (7817117187).

The spelling of 1313104056 in words is "one billion, three hundred thirteen million, one hundred four thousand, fifty-six".