20304011312 has 20 divisors (see below), whose sum is σ = 42365100960. Its totient is φ = 9371082048.

The previous prime is 20304011311. The next prime is 20304011333. The reversal of 20304011312 is 21311040302.

It is a super-2 number, since 2×20304011312² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20304011311) 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, 48807512 + ... + 48807927.

It is an arithmetic number, because the mean of its divisors is an integer number (2118255048).

Almost surely, 2^20304011312 is an apocalyptic number.

It is an amenable number.

20304011312 is an abundant number, since it is smaller than the sum of its proper divisors (22061089648).

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

20304011312 is a wasteful number, since it uses less digits than its factorization.

20304011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97615460 (or 97615454 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20304011312 its reverse (21311040302), we get a palindrome (41615051614).

The spelling of 20304011312 in words is "twenty billion, three hundred four million, eleven thousand, three hundred twelve".