11311102123231 has 64 divisors (see below), whose sum is σ = 12133604044800. Its totient is φ = 10531872000000.

The previous prime is 11311102123207. The next prime is 11311102123247. The reversal of 11311102123231 is 13232120111311.

It is a cyclic number.

It is not a de Polignac number, because 11311102123231 - 2³⁷ = 11173663169759 is a prime.

It is a super-2 number, since 2×11311102123231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311102123031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2914479411 + ... + 2914483291.

It is an arithmetic number, because the mean of its divisors is an integer number (189587563200).

Almost surely, 2^{11311102123231} is an apocalyptic number.

11311102123231 is a deficient number, since it is larger than the sum of its proper divisors (822501921569).

11311102123231 is a wasteful number, since it uses less digits than its factorization.

11311102123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11311102123231 its reverse (13232120111311), we get a palindrome (24543222234542).

The spelling of 11311102123231 in words is "eleven trillion, three hundred eleven billion, one hundred two million, one hundred twenty-three thousand, two hundred thirty-one".