313520104553 has 4 divisors (see below), whose sum is σ = 313583153988. Its totient is φ = 313457055120.

The previous prime is 313520104507. The next prime is 313520104559. The reversal of 313520104553 is 355401025313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355401025313 = 337 ⋅1054602449.

It can be written as a sum of positive squares in 2 ways, for example, as 228634116649 + 84885987904 = 478157^2 + 291352^2 .

It is a cyclic number.

It is not a de Polignac number, because 313520104553 - 2⁸ = 313520104297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313520104559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31517258 + ... + 31527203.

It is an arithmetic number, because the mean of its divisors is an integer number (78395788497).

Almost surely, 2^313520104553 is an apocalyptic number.

It is an amenable number.

313520104553 is a deficient number, since it is larger than the sum of its proper divisors (63049435).

313520104553 is an equidigital number, since it uses as much as digits as its factorization.

313520104553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63049434.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 313520104553 its reverse (355401025313), we get a palindrome (668921129866).

The spelling of 313520104553 in words is "three hundred thirteen billion, five hundred twenty million, one hundred four thousand, five hundred fifty-three".