20123300420 has 24 divisors (see below), whose sum is σ = 42328575744. Its totient is φ = 8036054496.

The previous prime is 20123300363. The next prime is 20123300423. The reversal of 20123300420 is 2400332102.

It is not an unprimeable number, because it can be changed into a prime (20123300423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816662 + ... + 840941.

It is an arithmetic number, because the mean of its divisors is an integer number (1763690656).

Almost surely, 2^20123300420 is an apocalyptic number.

20123300420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123300420 is an abundant number, since it is smaller than the sum of its proper divisors (22205275324).

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

20123300420 is a wasteful number, since it uses less digits than its factorization.

20123300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658219 (or 1658217 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20123300420 its reverse (2400332102), we get a palindrome (22523632522).

The spelling of 20123300420 in words is "twenty billion, one hundred twenty-three million, three hundred thousand, four hundred twenty".