11635901113 has 4 divisors (see below), whose sum is σ = 11645308900. Its totient is φ = 11626493328.

The previous prime is 11635901087. The next prime is 11635901129. The reversal of 11635901113 is 31110953611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31110953611 = 23 ⋅1352650157.

It can be written as a sum of positive squares in 2 ways, for example, as 5920994704 + 5714906409 = 76948^2 + 75597^2 .

It is a cyclic number.

It is not a de Polignac number, because 11635901113 - 2²⁵ = 11602346681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11635901213) 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, 4702038 + ... + 4704511.

It is an arithmetic number, because the mean of its divisors is an integer number (2911327225).

Almost surely, 2^11635901113 is an apocalyptic number.

It is an amenable number.

11635901113 is a deficient number, since it is larger than the sum of its proper divisors (9407787).

11635901113 is an equidigital number, since it uses as much as digits as its factorization.

11635901113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407786.

The product of its (nonzero) digits is 2430, while the sum is 31.

The spelling of 11635901113 in words is "eleven billion, six hundred thirty-five million, nine hundred one thousand, one hundred thirteen".