113520402 has 48 divisors (see below), whose sum is σ = 262510560. Its totient is φ = 35349696.

The previous prime is 113520401. The next prime is 113520427. The reversal of 113520402 is 204025311.

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

It is not an unprimeable number, because it can be changed into a prime (113520401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22693 + ... + 27239.

It is an arithmetic number, because the mean of its divisors is an integer number (5468970).

Almost surely, 2^113520402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113520402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131255280).

113520402 is an abundant number, since it is smaller than the sum of its proper divisors (148990158).

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

113520402 is a wasteful number, since it uses less digits than its factorization.

113520402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 113520402 is about 10654.5953466098. The cubic root of 113520402 is about 484.1998383618.

Adding to 113520402 its reverse (204025311), we get a palindrome (317545713).

The spelling of 113520402 in words is "one hundred thirteen million, five hundred twenty thousand, four hundred two".