113221542402 has 12 divisors (see below), whose sum is σ = 245313341910. Its totient is φ = 37740514128.

The previous prime is 113221542377. The next prime is 113221542437. The reversal of 113221542402 is 204245122311.

113221542402 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 215 + 42 + 402 = 666.

113221542402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 103865042961 + 9356499441 = 322281^2 + 96729^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3145042827 + ... + 3145042862.

Almost surely, 2^113221542402 is an apocalyptic number.

113221542402 is an abundant number, since it is smaller than the sum of its proper divisors (132091799508).

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

113221542402 is a wasteful number, since it uses less digits than its factorization.

113221542402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6290085697 (or 6290085694 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 113221542402 its reverse (204245122311), we get a palindrome (317466664713).

The spelling of 113221542402 in words is "one hundred thirteen billion, two hundred twenty-one million, five hundred forty-two thousand, four hundred two".