313423411421 has 4 divisors (see below), whose sum is σ = 313645856700. Its totient is φ = 313200966144.

The previous prime is 313423411373. The next prime is 313423411429. The reversal of 313423411421 is 124114324313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124114324313 = 7 ⋅17730617759.

It can be written as a sum of positive squares in 2 ways, for example, as 8072124025 + 305351287396 = 89845^2 + 552586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313423411421 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 (313423411429) 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, 111220526 + ... + 111223343.

It is an arithmetic number, because the mean of its divisors is an integer number (78411464175).

Almost surely, 2^313423411421 is an apocalyptic number.

It is an amenable number.

313423411421 is a deficient number, since it is larger than the sum of its proper divisors (222445279).

313423411421 is a wasteful number, since it uses less digits than its factorization.

313423411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222445278.

The product of its digits is 6912, while the sum is 29.

Adding to 313423411421 its reverse (124114324313), we get a palindrome (437537735734).

The spelling of 313423411421 in words is "three hundred thirteen billion, four hundred twenty-three million, four hundred eleven thousand, four hundred twenty-one".