11533532251423 has 12 divisors (see below), whose sum is σ = 14273111764848. Its totient is φ = 9125432110080.

The previous prime is 11533532251411. The next prime is 11533532251561. The reversal of 11533532251423 is 32415223533511.

It is a de Polignac number, because none of the positive numbers 2^k-11533532251423 is a prime.

It is a super-2 number, since 2×11533532251423² (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 (11533532251723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4874695458 + ... + 4874697823.

It is an arithmetic number, because the mean of its divisors is an integer number (1189425980404).

Almost surely, 2^{11533532251423} is an apocalyptic number.

11533532251423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11533532251423 is a deficient number, since it is larger than the sum of its proper divisors (2739579513425).

11533532251423 is an equidigital number, since it uses as much as digits as its factorization.

11533532251423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9749393314 (or 9749393301 counting only the distinct ones).

The product of its digits is 324000, while the sum is 40.

Adding to 11533532251423 its reverse (32415223533511), we get a palindrome (43948755784934).

The spelling of 11533532251423 in words is "eleven trillion, five hundred thirty-three billion, five hundred thirty-two million, two hundred fifty-one thousand, four hundred twenty-three".