113404643305 has 4 divisors (see below), whose sum is σ = 136085571972. Its totient is φ = 90723714640.

The previous prime is 113404643281. The next prime is 113404643309. The reversal of 113404643305 is 503346404311.

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 65619994896 + 47784648409 = 256164^2 + 218597^2 .

It is not a de Polignac number, because 113404643305 - 2³⁵ = 79044904937 is a prime.

It is a super-2 number, since 2×113404643305² (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 (113404643309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11340464326 + ... + 11340464335.

It is an arithmetic number, because the mean of its divisors is an integer number (34021392993).

Almost surely, 2^113404643305 is an apocalyptic number.

It is an amenable number.

113404643305 is a deficient number, since it is larger than the sum of its proper divisors (22680928667).

113404643305 is an equidigital number, since it uses as much as digits as its factorization.

113404643305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22680928666.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 113404643305 in words is "one hundred thirteen billion, four hundred four million, six hundred forty-three thousand, three hundred five".