113483976721 has 4 divisors (see below), whose sum is σ = 115344369844. Its totient is φ = 111623583600.

The previous prime is 113483976719. The next prime is 113483976743. The reversal of 113483976721 is 127679384311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64193316496 + 49290660225 = 253364^2 + 222015^2 .

It is a cyclic number.

It is not a de Polignac number, because 113483976721 - 2¹ = 113483976719 is a prime.

It is a super-2 number, since 2×113483976721² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113483976761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930196470 + ... + 930196591.

It is an arithmetic number, because the mean of its divisors is an integer number (28836092461).

Almost surely, 2^113483976721 is an apocalyptic number.

It is an amenable number.

113483976721 is a deficient number, since it is larger than the sum of its proper divisors (1860393123).

113483976721 is an equidigital number, since it uses as much as digits as its factorization.

113483976721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860393122.

The product of its digits is 1524096, while the sum is 52.

The spelling of 113483976721 in words is "one hundred thirteen billion, four hundred eighty-three million, nine hundred seventy-six thousand, seven hundred twenty-one".