23211424240 has 40 divisors (see below), whose sum is σ = 54391518720. Its totient is φ = 9211458816.

The previous prime is 23211424237. The next prime is 23211424273. The reversal of 23211424240 is 4242411232.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1132135 + ... + 1152454.

It is an arithmetic number, because the mean of its divisors is an integer number (1359787968).

Almost surely, 2^23211424240 is an apocalyptic number.

23211424240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23211424240 is an abundant number, since it is smaller than the sum of its proper divisors (31180094480).

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

23211424240 is a wasteful number, since it uses less digits than its factorization.

23211424240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284729 (or 2284723 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 23211424240 its reverse (4242411232), we get a palindrome (27453835472).

The spelling of 23211424240 in words is "twenty-three billion, two hundred eleven million, four hundred twenty-four thousand, two hundred forty".