3123211123131 has 16 divisors (see below), whose sum is σ = 4648500278400. Its totient is φ = 1848835336320.

The previous prime is 3123211123129. The next prime is 3123211123133. The reversal of 3123211123131 is 1313211123213.

It is an interprime number because it is at equal distance from previous prime (3123211123129) and next prime (3123211123133).

It is not a de Polignac number, because 3123211123131 - 2¹ = 3123211123129 is a prime.

It is a super-2 number, since 2×3123211123131² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3123211123133) 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, 1100495806 + ... + 1100498643.

It is an arithmetic number, because the mean of its divisors is an integer number (290531267400).

Almost surely, 2^{3123211123131} is an apocalyptic number.

3123211123131 is a deficient number, since it is larger than the sum of its proper divisors (1525289155269).

3123211123131 is a wasteful number, since it uses less digits than its factorization.

3123211123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200994506.

The product of its digits is 648, while the sum is 24.

Adding to 3123211123131 its reverse (1313211123213), we get a palindrome (4436422246344).

The spelling of 3123211123131 in words is "three trillion, one hundred twenty-three billion, two hundred eleven million, one hundred twenty-three thousand, one hundred thirty-one".