113203985764 has 27 divisors (see below), whose sum is σ = 205209186091. Its totient is φ = 54640779200.

The previous prime is 113203985759. The next prime is 113203985777. The reversal of 113203985764 is 467589302311.

The square root of 113203985764 is 336458.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 44580944164 + 68623041600 = 211142^2 + 261960^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19511664 + ... + 19517464.

It is a 1-persistent number, because it is pandigital, but 2⋅113203985764 = 226407971528 is not.

Almost surely, 2^113203985764 is an apocalyptic number.

113203985764 is the 336458-th square number.

It is an amenable number.

113203985764 is a deficient number, since it is larger than the sum of its proper divisors (92005200327).

113203985764 is an frugal number, since it uses more digits than its factorization.

113203985764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11664 (or 5832 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

Multiplying 113203985764 by its sum of digits (49), we get a square (5546995302436 = 2355206²).

The spelling of 113203985764 in words is "one hundred thirteen billion, two hundred three million, nine hundred eighty-five thousand, seven hundred sixty-four".