313104040302421 has 4 divisors (see below), whose sum is σ = 318410888443200. Its totient is φ = 307797192161644.

The previous prime is 313104040302377. The next prime is 313104040302451. The reversal of 313104040302421 is 124203040401313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313104040302421 - 2¹⁵ = 313104040269653 is a prime.

It is a super-2 number, since 2×313104040302421² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313104040302421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313104040302451) 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, 2653424070301 + ... + 2653424070418.

It is an arithmetic number, because the mean of its divisors is an integer number (79602722110800).

Almost surely, 2^{313104040302421} is an apocalyptic number.

It is an amenable number.

313104040302421 is a deficient number, since it is larger than the sum of its proper divisors (5306848140779).

313104040302421 is an equidigital number, since it uses as much as digits as its factorization.

313104040302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306848140778.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 313104040302421 its reverse (124203040401313), we get a palindrome (437307080703734).

The spelling of 313104040302421 in words is "three hundred thirteen trillion, one hundred four billion, forty million, three hundred two thousand, four hundred twenty-one".