113312311203 has 24 divisors (see below), whose sum is σ = 189268918608. Its totient is φ = 59769130176.

The previous prime is 113312311163. The next prime is 113312311219. The reversal of 113312311203 is 302113213311.

It is a happy number.

It is not a de Polignac number, because 113312311203 - 2¹⁷ = 113312180131 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 113312311203.

It is not an unprimeable number, because it can be changed into a prime (113312312203) 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 23 ways as a sum of consecutive naturals, for example, 29645476 + ... + 29649297.

It is an arithmetic number, because the mean of its divisors is an integer number (7886204942).

Almost surely, 2^113312311203 is an apocalyptic number.

113312311203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113312311203 is a deficient number, since it is larger than the sum of its proper divisors (75956607405).

113312311203 is a wasteful number, since it uses less digits than its factorization.

113312311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59294803 (or 59294796 counting only the distinct ones).

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

Adding to 113312311203 its reverse (302113213311), we get a palindrome (415425524514).

The spelling of 113312311203 in words is "one hundred thirteen billion, three hundred twelve million, three hundred eleven thousand, two hundred three".