20423113300 has 72 divisors (see below), whose sum is σ = 46681560800. Its totient is φ = 7734165120.

The previous prime is 20423113283. The next prime is 20423113301. The reversal of 20423113300 is 331132402.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423113301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4137634 + ... + 4142566.

Almost surely, 2^20423113300 is an apocalyptic number.

20423113300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20423113300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23340780400).

20423113300 is an abundant number, since it is smaller than the sum of its proper divisors (26258447500).

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

20423113300 is a wasteful number, since it uses less digits than its factorization.

20423113300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145 (or 7138 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20423113300 its reverse (331132402), we get a palindrome (20754245702).

The spelling of 20423113300 in words is "twenty billion, four hundred twenty-three million, one hundred thirteen thousand, three hundred".