20313320132 has 24 divisors (see below), whose sum is σ = 40663736064. Its totient is φ = 8697759552.

The previous prime is 20313320129. The next prime is 20313320141. The reversal of 20313320132 is 23102331302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299948 + ... + 361379.

It is an arithmetic number, because the mean of its divisors is an integer number (1694322336).

Almost surely, 2^20313320132 is an apocalyptic number.

It is an amenable number.

20313320132 is an abundant number, since it is smaller than the sum of its proper divisors (20350415932).

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

20313320132 is a wasteful number, since it uses less digits than its factorization.

20313320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662435 (or 662433 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20313320132 its reverse (23102331302), we get a palindrome (43415651434).

The spelling of 20313320132 in words is "twenty billion, three hundred thirteen million, three hundred twenty thousand, one hundred thirty-two".