113661101 has 4 divisors (see below), whose sum is σ = 118602912. Its totient is φ = 108719292.

The previous prime is 113661089. The next prime is 113661109. The reversal of 113661101 is 101166311.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101166311 = 41 ⋅2467471.

It is a cyclic number.

It is not a de Polignac number, because 113661101 - 2¹⁴ = 113644717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113661109) 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, 2470871 + ... + 2470916.

It is an arithmetic number, because the mean of its divisors is an integer number (29650728).

Almost surely, 2^113661101 is an apocalyptic number.

It is an amenable number.

113661101 is a deficient number, since it is larger than the sum of its proper divisors (4941811).

113661101 is an equidigital number, since it uses as much as digits as its factorization.

113661101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941810.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 113661101 is about 10661.1960398447. The cubic root of 113661101 is about 484.3997974457.

The spelling of 113661101 in words is "one hundred thirteen million, six hundred sixty-one thousand, one hundred one".