113205316161 has 8 divisors (see below), whose sum is σ = 172503338944. Its totient is φ = 64688752080.

The previous prime is 113205316157. The next prime is 113205316177. The reversal of 113205316161 is 161613502311.

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

It is not a de Polignac number, because 113205316161 - 2² = 113205316157 is a prime.

It is a super-2 number, since 2×113205316161² (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 (113205316361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2695364650 + ... + 2695364691.

It is an arithmetic number, because the mean of its divisors is an integer number (21562917368).

Almost surely, 2^113205316161 is an apocalyptic number.

It is an amenable number.

113205316161 is a deficient number, since it is larger than the sum of its proper divisors (59298022783).

113205316161 is an equidigital number, since it uses as much as digits as its factorization.

113205316161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390729351.

The product of its (nonzero) digits is 3240, while the sum is 30.

Adding to 113205316161 its reverse (161613502311), we get a palindrome (274818818472).

The spelling of 113205316161 in words is "one hundred thirteen billion, two hundred five million, three hundred sixteen thousand, one hundred sixty-one".