20315307392 has 32 divisors (see below), whose sum is σ = 40495697280. Its totient is φ = 10151681536.

The previous prime is 20315307391. The next prime is 20315307413. The reversal of 20315307392 is 29370351302.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315307391) 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, 176033 + ... + 267615.

It is an arithmetic number, because the mean of its divisors is an integer number (1265490540).

Almost surely, 2^20315307392 is an apocalyptic number.

It is an amenable number.

20315307392 is a deficient number, since it is larger than the sum of its proper divisors (20180389888).

20315307392 is an equidigital number, since it uses as much as digits as its factorization.

20315307392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93330 (or 93318 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 35.

Adding to 20315307392 its reverse (29370351302), we get a palindrome (49685658694).

The spelling of 20315307392 in words is "twenty billion, three hundred fifteen million, three hundred seven thousand, three hundred ninety-two".