3123131213011 has 24 divisors (see below), whose sum is σ = 3326900351040. Its totient is φ = 2928287980800.

The previous prime is 3123131212951. The next prime is 3123131213051. The reversal of 3123131213011 is 1103121313213.

It is not a de Polignac number, because 3123131213011 - 2¹⁵ = 3123131180243 is a prime.

It is a super-2 number, since 2×3123131213011² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3123131213051) 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 23 ways as a sum of consecutive naturals, for example, 20608726 + ... + 20759716.

It is an arithmetic number, because the mean of its divisors is an integer number (138620847960).

Almost surely, 2^{3123131213011} is an apocalyptic number.

3123131213011 is a deficient number, since it is larger than the sum of its proper divisors (203769138029).

3123131213011 is a wasteful number, since it uses less digits than its factorization.

3123131213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151615 (or 151578 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 3123131213011 its reverse (1103121313213), we get a palindrome (4226252526224).

The spelling of 3123131213011 in words is "three trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred thirteen thousand, eleven".