23243332420 has 48 divisors (see below), whose sum is σ = 60855274368. Its totient is φ = 7244674560.

The previous prime is 23243332397. The next prime is 23243332429. The reversal of 23243332420 is 2423334232.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (23243332429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7544997 + ... + 7548076.

It is an arithmetic number, because the mean of its divisors is an integer number (1267818216).

Almost surely, 2^23243332420 is an apocalyptic number.

23243332420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23243332420 is an abundant number, since it is smaller than the sum of its proper divisors (37611941948).

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

23243332420 is a wasteful number, since it uses less digits than its factorization.

23243332420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15093100 (or 15093098 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 23243332420 its reverse (2423334232), we get a palindrome (25666666652).

The spelling of 23243332420 in words is "twenty-three billion, two hundred forty-three million, three hundred thirty-two thousand, four hundred twenty".