20320011372 has 24 divisors (see below), whose sum is σ = 48515997376. Its totient is φ = 6615817488.

The previous prime is 20320011367. The next prime is 20320011391. The reversal of 20320011372 is 27311002302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19689418 + ... + 19690449.

Almost surely, 2^20320011372 is an apocalyptic number.

It is an amenable number.

20320011372 is an abundant number, since it is smaller than the sum of its proper divisors (28195986004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20320011372 is a wasteful number, since it uses less digits than its factorization.

20320011372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39379917 (or 39379915 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 20320011372 its reverse (27311002302), we get a palindrome (47631013674).

The spelling of 20320011372 in words is "twenty billion, three hundred twenty million, eleven thousand, three hundred seventy-two".