20323743392 has 12 divisors (see below), whose sum is σ = 40012369866. Its totient is φ = 10161871680.

The previous prime is 20323743371. The next prime is 20323743439. The reversal of 20323743392 is 29334732302.

It can be written as a sum of positive squares in only one way, i.e., 13858940176 + 6464803216 = 117724^2 + 80404^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317558459 + ... + 317558522.

Almost surely, 2^20323743392 is an apocalyptic number.

It is an amenable number.

20323743392 is a deficient number, since it is larger than the sum of its proper divisors (19688626474).

20323743392 is an equidigital number, since it uses as much as digits as its factorization.

20323743392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635116991 (or 635116983 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 38.

The spelling of 20323743392 in words is "twenty billion, three hundred twenty-three million, seven hundred forty-three thousand, three hundred ninety-two".