113561743205 has 4 divisors (see below), whose sum is σ = 136274091852. Its totient is φ = 90849394560.

The previous prime is 113561743177. The next prime is 113561743219. The reversal of 113561743205 is 502347165311.

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 54173028001 + 59388715204 = 232751^2 + 243698^2 .

It is not a de Polignac number, because 113561743205 - 2³² = 109266775909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11356174316 + ... + 11356174325.

It is an arithmetic number, because the mean of its divisors is an integer number (34068522963).

Almost surely, 2^113561743205 is an apocalyptic number.

It is an amenable number.

113561743205 is a deficient number, since it is larger than the sum of its proper divisors (22712348647).

113561743205 is an equidigital number, since it uses as much as digits as its factorization.

113561743205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22712348646.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 113561743205 in words is "one hundred thirteen billion, five hundred sixty-one million, seven hundred forty-three thousand, two hundred five".