20302320012 has 24 divisors (see below), whose sum is σ = 51016086576. Its totient is φ = 6246867648.

The previous prime is 20302319993. The next prime is 20302320043. The reversal of 20302320012 is 21002320302.

It is a junction number, because it is equal to n+sod(n) for n = 20302319973 and 20302320000.

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, 65071383 + ... + 65071694.

It is an arithmetic number, because the mean of its divisors is an integer number (2125670274).

Almost surely, 2^20302320012 is an apocalyptic number.

It is an amenable number.

20302320012 is an abundant number, since it is smaller than the sum of its proper divisors (30713766564).

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

20302320012 is a wasteful number, since it uses less digits than its factorization.

20302320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130143097 (or 130143095 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20302320012 its reverse (21002320302), we get a palindrome (41304640314).

The spelling of 20302320012 in words is "twenty billion, three hundred two million, three hundred twenty thousand, twelve".