113130320202 has 72 divisors (see below), whose sum is σ = 256387029444. Its totient is φ = 36049318272.

The previous prime is 113130320143. The next prime is 113130320207. The reversal of 113130320202 is 202023031311.

113130320202 is a `hidden beast` number, since 1 + 13 + 130 + 320 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 110655357201 + 2474963001 = 332649^2 + 49749^2 .

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 (113130320207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27773638 + ... + 27777710.

Almost surely, 2^113130320202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113130320202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128193514722).

113130320202 is an abundant number, since it is smaller than the sum of its proper divisors (143256709242).

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

113130320202 is a wasteful number, since it uses less digits than its factorization.

113130320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 113130320202 its reverse (202023031311), we get a palindrome (315153351513).

The spelling of 113130320202 in words is "one hundred thirteen billion, one hundred thirty million, three hundred twenty thousand, two hundred two".