1313100552645 has 48 divisors (see below), whose sum is σ = 2601271221120. Its totient is φ = 600255718272.

The previous prime is 1313100552623. The next prime is 1313100552667. The reversal of 1313100552645 is 5462550013131.

1313100552645 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 1 + 0 + 0 + 5 + 5 + 2 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (1313100552623) and next prime (1313100552667).

It is not a de Polignac number, because 1313100552645 - 2⁵ = 1313100552613 is a prime.

It is a super-2 number, since 2×1313100552645² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17368867 + ... + 17444303.

It is an arithmetic number, because the mean of its divisors is an integer number (54193150440).

Almost surely, 2^{1313100552645} is an apocalyptic number.

1313100552645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313100552645 is a deficient number, since it is larger than the sum of its proper divisors (1288170668475).

1313100552645 is a wasteful number, since it uses less digits than its factorization.

1313100552645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130714 (or 130711 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 1313100552645 its reverse (5462550013131), we get a palindrome (6775650565776).

The spelling of 1313100552645 in words is "one trillion, three hundred thirteen billion, one hundred million, five hundred fifty-two thousand, six hundred forty-five".