113551111553 has 16 divisors (see below), whose sum is σ = 125849592000. Its totient is φ = 101594623680.

The previous prime is 113551111507. The next prime is 113551111579. The reversal of 113551111553 is 355111155311.

It is not a de Polignac number, because 113551111553 - 2²² = 113546917249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113551611553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139151 + ... + 496452.

It is an arithmetic number, because the mean of its divisors is an integer number (7865599500).

Almost surely, 2^113551111553 is an apocalyptic number.

It is an amenable number.

113551111553 is a deficient number, since it is larger than the sum of its proper divisors (12298480447).

113551111553 is a wasteful number, since it uses less digits than its factorization.

113551111553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635872.

The product of its digits is 5625, while the sum is 32.

Adding to 113551111553 its reverse (355111155311), we get a palindrome (468662266864).

The spelling of 113551111553 in words is "one hundred thirteen billion, five hundred fifty-one million, one hundred eleven thousand, five hundred fifty-three".