20188102304 has 12 divisors (see below), whose sum is σ = 39745326474. Its totient is φ = 10094051136.

The previous prime is 20188102303. The next prime is 20188102343. The reversal of 20188102304 is 40320188102.

It can be written as a sum of positive squares in only one way, i.e., 12593328400 + 7594773904 = 112220^2 + 87148^2 .

It is not an unprimeable number, because it can be changed into a prime (20188102303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315439067 + ... + 315439130.

Almost surely, 2^20188102304 is an apocalyptic number.

It is an amenable number.

20188102304 is a deficient number, since it is larger than the sum of its proper divisors (19557224170).

20188102304 is an equidigital number, since it uses as much as digits as its factorization.

20188102304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630878207 (or 630878199 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 20188102304 in words is "twenty billion, one hundred eighty-eight million, one hundred two thousand, three hundred four".