113405203165 has 8 divisors (see below), whose sum is σ = 139405420728. Its totient is φ = 88511377920.

The previous prime is 113405203103. The next prime is 113405203199. The reversal of 113405203165 is 561302504311.

It can be written as a sum of positive squares in 4 ways, for example, as 1824485796 + 111580717369 = 42714^2 + 334037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113405203165 - 2⁹ = 113405202653 is a prime.

It is a super-3 number, since 3×113405203165³ (a number of 34 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 276597852 + ... + 276598261.

It is an arithmetic number, because the mean of its divisors is an integer number (17425677591).

Almost surely, 2^113405203165 is an apocalyptic number.

It is an amenable number.

113405203165 is a deficient number, since it is larger than the sum of its proper divisors (26000217563).

113405203165 is an equidigital number, since it uses as much as digits as its factorization.

113405203165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553196159.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 113405203165 its reverse (561302504311), we get a palindrome (674707707476).

The spelling of 113405203165 in words is "one hundred thirteen billion, four hundred five million, two hundred three thousand, one hundred sixty-five".