3112021232131 has 4 divisors (see below), whose sum is σ = 3556595693872. Its totient is φ = 2667446770392.

The previous prime is 3112021232129. The next prime is 3112021232153. The reversal of 3112021232131 is 1312321202113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3112021232131 - 2¹ = 3112021232129 is a prime.

It is a super-2 number, since 2×3112021232131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112021232191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222287230860 + ... + 222287230873.

It is an arithmetic number, because the mean of its divisors is an integer number (889148923468).

Almost surely, 2^{3112021232131} is an apocalyptic number.

3112021232131 is a deficient number, since it is larger than the sum of its proper divisors (444574461741).

3112021232131 is an equidigital number, since it uses as much as digits as its factorization.

3112021232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444574461740.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3112021232131 its reverse (1312321202113), we get a palindrome (4424342434244).

The spelling of 3112021232131 in words is "three trillion, one hundred twelve billion, twenty-one million, two hundred thirty-two thousand, one hundred thirty-one".