20304122412 has 48 divisors (see below), whose sum is σ = 55062040320. Its totient is φ = 5702851392.

The previous prime is 20304122407. The next prime is 20304122429. The reversal of 20304122412 is 21422140302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043483 + ... + 2053394.

It is an arithmetic number, because the mean of its divisors is an integer number (1147125840).

Almost surely, 2^20304122412 is an apocalyptic number.

It is an amenable number.

20304122412 is an abundant number, since it is smaller than the sum of its proper divisors (34757917908).

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

20304122412 is a wasteful number, since it uses less digits than its factorization.

20304122412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096950 (or 4096948 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20304122412 its reverse (21422140302), we get a palindrome (41726262714).

The spelling of 20304122412 in words is "twenty billion, three hundred four million, one hundred twenty-two thousand, four hundred twelve".