113321213103 has 24 divisors (see below), whose sum is σ = 173136688768. Its totient is φ = 64584150192.

The previous prime is 113321213077. The next prime is 113321213119. The reversal of 113321213103 is 301312123311.

It is a happy number.

It is not a de Polignac number, because 113321213103 - 2³³ = 104731278511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113321213103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321213123) 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, 3062076 + ... + 3098862.

Almost surely, 2^113321213103 is an apocalyptic number.

113321213103 is a deficient number, since it is larger than the sum of its proper divisors (59815475665).

113321213103 is an frugal number, since it uses more digits than its factorization.

113321213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37563 (or 37180 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 113321213103 its reverse (301312123311), we get a palindrome (414633336414).

The spelling of 113321213103 in words is "one hundred thirteen billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred three".