113213513242 has 16 divisors (see below), whose sum is σ = 180032002920. Its totient is φ = 53211079168.

The previous prime is 113213513167. The next prime is 113213513291. The reversal of 113213513242 is 242315312311.

It can be written as a sum of positive squares in 4 ways, for example, as 111730416121 + 1483097121 = 334261^2 + 38511^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 113213513242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030473 + ... + 2085484.

Almost surely, 2^113213513242 is an apocalyptic number.

113213513242 is a deficient number, since it is larger than the sum of its proper divisors (66818489678).

113213513242 is a wasteful number, since it uses less digits than its factorization.

113213513242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116785.

The product of its digits is 4320, while the sum is 28.

Adding to 113213513242 its reverse (242315312311), we get a palindrome (355528825553).

The spelling of 113213513242 in words is "one hundred thirteen billion, two hundred thirteen million, five hundred thirteen thousand, two hundred forty-two".