313212311421 has 8 divisors (see below), whose sum is σ = 442182086784. Its totient is φ = 196525371840.

The previous prime is 313212311413. The next prime is 313212311431. The reversal of 313212311421 is 124113212313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313212311421 - 2³ = 313212311413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313212311391 and 313212311400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212311431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3070708885 + ... + 3070708986.

It is an arithmetic number, because the mean of its divisors is an integer number (55272760848).

Almost surely, 2^313212311421 is an apocalyptic number.

It is an amenable number.

313212311421 is a deficient number, since it is larger than the sum of its proper divisors (128969775363).

313212311421 is a wasteful number, since it uses less digits than its factorization.

313212311421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141417891.

The product of its digits is 864, while the sum is 24.

Adding to 313212311421 its reverse (124113212313), we get a palindrome (437325523734).

The spelling of 313212311421 in words is "three hundred thirteen billion, two hundred twelve million, three hundred eleven thousand, four hundred twenty-one".