313121243121424 has 20 divisors (see below), whose sum is σ = 615727220617744. Its totient is φ = 154223895865248.

The previous prime is 313121243121409. The next prime is 313121243121551. The reversal of 313121243121424 is 424121342121313.

It is a self number, because there is not a number n which added to its sum of digits gives 313121243121424.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146045354862 + ... + 146045357005.

Almost surely, 2^{313121243121424} is an apocalyptic number.

It is an amenable number.

313121243121424 is a deficient number, since it is larger than the sum of its proper divisors (302605977496320).

313121243121424 is a wasteful number, since it uses less digits than its factorization.

313121243121424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292090711942 (or 292090711936 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

Adding to 313121243121424 its reverse (424121342121313), we get a palindrome (737242585242737).

The spelling of 313121243121424 in words is "three hundred thirteen trillion, one hundred twenty-one billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred twenty-four".