113904210818 has 4 divisors (see below), whose sum is σ = 170856316230. Its totient is φ = 56952105408.

The previous prime is 113904210817. The next prime is 113904210851. The reversal of 113904210818 is 818012409311.

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

It can be written as a sum of positive squares in only one way, i.e., 96182477689 + 17721733129 = 310133^2 + 133123^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113904210817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28476052703 + ... + 28476052706.

Almost surely, 2^113904210818 is an apocalyptic number.

113904210818 is a deficient number, since it is larger than the sum of its proper divisors (56952105412).

113904210818 is an equidigital number, since it uses as much as digits as its factorization.

113904210818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56952105411.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 113904210818 in words is "one hundred thirteen billion, nine hundred four million, two hundred ten thousand, eight hundred eighteen".