23203420240 has 320 divisors, whose sum is σ = 73327306752. Its totient is φ = 6593587200.

The previous prime is 23203420213. The next prime is 23203420283. The reversal of 23203420240 is 4202430232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6644895 + ... + 6648385.

Almost surely, 2^23203420240 is an apocalyptic number.

23203420240 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 23203420240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36663653376).

23203420240 is an abundant number, since it is smaller than the sum of its proper divisors (50123886512).

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

23203420240 is a wasteful number, since it uses less digits than its factorization.

23203420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618 (or 3612 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 23203420240 its reverse (4202430232), we get a palindrome (27405850472).

The spelling of 23203420240 in words is "twenty-three billion, two hundred three million, four hundred twenty thousand, two hundred forty".