118056936821 has 4 divisors (see below), whose sum is σ = 118958134944. Its totient is φ = 117155738700.

The previous prime is 118056936817. The next prime is 118056936857. The reversal of 118056936821 is 128639650811.

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 118056936821 - 2² = 118056936817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118056936821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118056936871) 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, 450598865 + ... + 450599126.

It is an arithmetic number, because the mean of its divisors is an integer number (29739533736).

Almost surely, 2^118056936821 is an apocalyptic number.

It is an amenable number.

118056936821 is a deficient number, since it is larger than the sum of its proper divisors (901198123).

118056936821 is an equidigital number, since it uses as much as digits as its factorization.

118056936821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901198122.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 118056936821 in words is "one hundred eighteen billion, fifty-six million, nine hundred thirty-six thousand, eight hundred twenty-one".