113131310202 has 40 divisors (see below), whose sum is σ = 255321712800. Its totient is φ = 37439131176.

The previous prime is 113131310197. The next prime is 113131310287. The reversal of 113131310202 is 202013131311.

It is a super-2 number, since 2×113131310202² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2489502 + ... + 2534537.

It is an arithmetic number, because the mean of its divisors is an integer number (6383042820).

Almost surely, 2^113131310202 is an apocalyptic number.

113131310202 is an abundant number, since it is smaller than the sum of its proper divisors (142190402598).

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

113131310202 is a wasteful number, since it uses less digits than its factorization.

113131310202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024192 (or 5024183 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113131310202 its reverse (202013131311), we get a palindrome (315144441513).

The spelling of 113131310202 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred ten thousand, two hundred two".