3120211310231 has 4 divisors (see below), whose sum is σ = 3120215343792. Its totient is φ = 3120207276672.

The previous prime is 3120211310197. The next prime is 3120211310239. The reversal of 3120211310231 is 1320131120213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120211310231 is a prime.

It is a super-3 number, since 3×3120211310231³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120211310239) 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, 451466 + ... + 2538551.

It is an arithmetic number, because the mean of its divisors is an integer number (780053835948).

Almost surely, 2^{3120211310231} is an apocalyptic number.

3120211310231 is a deficient number, since it is larger than the sum of its proper divisors (4033561).

3120211310231 is a wasteful number, since it uses less digits than its factorization.

3120211310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033560.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3120211310231 its reverse (1320131120213), we get a palindrome (4440342430444).

The spelling of 3120211310231 in words is "three trillion, one hundred twenty billion, two hundred eleven million, three hundred ten thousand, two hundred thirty-one".