3112321311021 has 16 divisors (see below), whose sum is σ = 4469118312960. Its totient is φ = 1915212886080.

The previous prime is 3112321311013. The next prime is 3112321311041. The reversal of 3112321311021 is 1201131232113.

It is not a de Polignac number, because 3112321311021 - 2³ = 3112321311013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112321311041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46866 + ... + 2495363.

It is an arithmetic number, because the mean of its divisors is an integer number (279319894560).

Almost surely, 2^{3112321311021} is an apocalyptic number.

It is an amenable number.

3112321311021 is a deficient number, since it is larger than the sum of its proper divisors (1356797001939).

3112321311021 is a wasteful number, since it uses less digits than its factorization.

3112321311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573636.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 3112321311021 its reverse (1201131232113), we get a palindrome (4313452543134).

The spelling of 3112321311021 in words is "three trillion, one hundred twelve billion, three hundred twenty-one million, three hundred eleven thousand, twenty-one".