11161850113 has 4 divisors (see below), whose sum is σ = 11647147968. Its totient is φ = 10676552260.

The previous prime is 11161850099. The next prime is 11161850137. The reversal of 11161850113 is 31105816111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11161850113 - 2⁵ = 11161850081 is a prime.

It is a super-2 number, since 2×11161850113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11161850213) 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, 242648893 + ... + 242648938.

It is an arithmetic number, because the mean of its divisors is an integer number (2911786992).

Almost surely, 2^11161850113 is an apocalyptic number.

It is an amenable number.

11161850113 is a deficient number, since it is larger than the sum of its proper divisors (485297855).

11161850113 is an equidigital number, since it uses as much as digits as its factorization.

11161850113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485297854.

The product of its (nonzero) digits is 720, while the sum is 28.

The spelling of 11161850113 in words is "eleven billion, one hundred sixty-one million, eight hundred fifty thousand, one hundred thirteen".