113205212144 has 40 divisors (see below), whose sum is σ = 222655012560. Its totient is φ = 55746206208.

The previous prime is 113205212137. The next prime is 113205212149. The reversal of 113205212144 is 441212502311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113205212149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7634882 + ... + 7649694.

It is an arithmetic number, because the mean of its divisors is an integer number (5566375314).

Almost surely, 2^113205212144 is an apocalyptic number.

It is an amenable number.

113205212144 is a deficient number, since it is larger than the sum of its proper divisors (109449800416).

113205212144 is a wasteful number, since it uses less digits than its factorization.

113205212144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017 (or 22011 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 113205212144 its reverse (441212502311), we get a palindrome (554417714455).

The spelling of 113205212144 in words is "one hundred thirteen billion, two hundred five million, two hundred twelve thousand, one hundred forty-four".