113303231138 has 16 divisors (see below), whose sum is σ = 170259871320. Its totient is φ = 56550014976.

The previous prime is 113303231131. The next prime is 113303231149. The reversal of 113303231138 is 831132303311.

It can be written as a sum of positive squares in 4 ways, for example, as 95065538929 + 18237692209 = 308327^2 + 135047^2 .

It is a super-2 number, since 2×113303231138² (a number of 23 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 113303231138.

It is not an unprimeable number, because it can be changed into a prime (113303231131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294206 + ... + 3328422.

Almost surely, 2^113303231138 is an apocalyptic number.

113303231138 is a deficient number, since it is larger than the sum of its proper divisors (56956640182).

113303231138 is a wasteful number, since it uses less digits than its factorization.

113303231138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37141.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 113303231138 its reverse (831132303311), we get a palindrome (944435534449).

The spelling of 113303231138 in words is "one hundred thirteen billion, three hundred three million, two hundred thirty-one thousand, one hundred thirty-eight".