3112313320221 has 32 divisors (see below), whose sum is σ = 4858819795200. Its totient is φ = 1734882347520.

The previous prime is 3112313320213. The next prime is 3112313320223. The reversal of 3112313320221 is 1220233132113.

It is not a de Polignac number, because 3112313320221 - 2³ = 3112313320213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3112313320191 and 3112313320200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112313320223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7220115 + ... + 7639023.

It is an arithmetic number, because the mean of its divisors is an integer number (151838118600).

Almost surely, 2^{3112313320221} is an apocalyptic number.

It is an amenable number.

3112313320221 is a deficient number, since it is larger than the sum of its proper divisors (1746506474979).

3112313320221 is a wasteful number, since it uses less digits than its factorization.

3112313320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427589.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 3112313320221 its reverse (1220233132113), we get a palindrome (4332546452334).

The spelling of 3112313320221 in words is "three trillion, one hundred twelve billion, three hundred thirteen million, three hundred twenty thousand, two hundred twenty-one".