11331501123 has 16 divisors (see below), whose sum is σ = 15257796480. Its totient is φ = 7479905664.

The previous prime is 11331501109. The next prime is 11331501133. The reversal of 11331501123 is 32110513311.

11331501123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11331501123 - 2⁵ = 11331501091 is a prime.

It is a super-2 number, since 2×11331501123² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11331501123.

It is not an unprimeable number, because it can be changed into a prime (11331501133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329040 + ... + 361842.

It is an arithmetic number, because the mean of its divisors is an integer number (953612280).

Almost surely, 2^11331501123 is an apocalyptic number.

11331501123 is a deficient number, since it is larger than the sum of its proper divisors (3926295357).

11331501123 is a wasteful number, since it uses less digits than its factorization.

11331501123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33938.

The product of its (nonzero) digits is 270, while the sum is 21.

The spelling of 11331501123 in words is "eleven billion, three hundred thirty-one million, five hundred one thousand, one hundred twenty-three".