23221023240 has 64 divisors (see below), whose sum is σ = 70171608960. Its totient is φ = 6147069440.

The previous prime is 23221023209. The next prime is 23221023247. The reversal of 23221023240 is 4232012232.

It is not an unprimeable number, because it can be changed into a prime (23221023247) 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, 689796 + ... + 722675.

It is an arithmetic number, because the mean of its divisors is an integer number (1096431390).

Almost surely, 2^23221023240 is an apocalyptic number.

23221023240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23221023240 is an abundant number, since it is smaller than the sum of its proper divisors (46950585720).

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

23221023240 is a wasteful number, since it uses less digits than its factorization.

23221023240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412622 (or 1412618 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23221023240 its reverse (4232012232), we get a palindrome (27453035472).

The spelling of 23221023240 in words is "twenty-three billion, two hundred twenty-one million, twenty-three thousand, two hundred forty".