10313456621 has 4 divisors (see below), whose sum is σ = 11106799452. Its totient is φ = 9520113792.

The previous prime is 10313456617. The next prime is 10313456639. The reversal of 10313456621 is 12665431301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1056900100 + 9256556521 = 32510^2 + 96211^2 .

It is a cyclic number.

It is not a de Polignac number, because 10313456621 - 2² = 10313456617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10313456651) 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, 396671396 + ... + 396671421.

It is an arithmetic number, because the mean of its divisors is an integer number (2776699863).

Almost surely, 2^10313456621 is an apocalyptic number.

It is an amenable number.

10313456621 is a deficient number, since it is larger than the sum of its proper divisors (793342831).

10313456621 is an equidigital number, since it uses as much as digits as its factorization.

10313456621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793342830.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 10313456621 its reverse (12665431301), we get a palindrome (22978887922).

The spelling of 10313456621 in words is "ten billion, three hundred thirteen million, four hundred fifty-six thousand, six hundred twenty-one".