11454131136 has 56 divisors (see below), whose sum is σ = 34635114880. Its totient is φ = 3272608512.

The previous prime is 11454131111. The next prime is 11454131177. The reversal of 11454131136 is 63113145411.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4259866 + ... + 4262553.

Almost surely, 2^11454131136 is an apocalyptic number.

11454131136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11454131136 is an abundant number, since it is smaller than the sum of its proper divisors (23180983744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11454131136 is an equidigital number, since it uses as much as digits as its factorization.

11454131136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8522441 (or 8522431 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 11454131136 its reverse (63113145411), we get a palindrome (74567276547).

The spelling of 11454131136 in words is "eleven billion, four hundred fifty-four million, one hundred thirty-one thousand, one hundred thirty-six".