113717809811 has 4 divisors (see below), whose sum is σ = 113722018272. Its totient is φ = 113713601352.

The previous prime is 113717809789. The next prime is 113717809871. The reversal of 113717809811 is 118908717311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113717809811 - 2⁶ = 113717809747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113717809871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063435 + ... + 2117828.

It is an arithmetic number, because the mean of its divisors is an integer number (28430504568).

Almost surely, 2^113717809811 is an apocalyptic number.

113717809811 is a deficient number, since it is larger than the sum of its proper divisors (4208461).

113717809811 is an equidigital number, since it uses as much as digits as its factorization.

113717809811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208460.

The product of its (nonzero) digits is 84672, while the sum is 47.

The spelling of 113717809811 in words is "one hundred thirteen billion, seven hundred seventeen million, eight hundred nine thousand, eight hundred eleven".