113523553551 has 16 divisors (see below), whose sum is σ = 151780091904. Its totient is φ = 75474962304.

The previous prime is 113523553543. The next prime is 113523553589. The reversal of 113523553551 is 155355325311.

It is not a de Polignac number, because 113523553551 - 2³ = 113523553543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113523553541) 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, 1687506 + ... + 1753488.

It is an arithmetic number, because the mean of its divisors is an integer number (9486255744).

Almost surely, 2^113523553551 is an apocalyptic number.

113523553551 is a deficient number, since it is larger than the sum of its proper divisors (38256538353).

113523553551 is an equidigital number, since it uses as much as digits as its factorization.

113523553551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67550.

The product of its digits is 168750, while the sum is 39.

Adding to 113523553551 its reverse (155355325311), we get a palindrome (268878878862).

The spelling of 113523553551 in words is "one hundred thirteen billion, five hundred twenty-three million, five hundred fifty-three thousand, five hundred fifty-one".