23421221242502 has 32 divisors (see below), whose sum is σ = 35722417478400. Its totient is φ = 11514405371040.

The previous prime is 23421221242483. The next prime is 23421221242513. The reversal of 23421221242502 is 20524212212432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480046553 + ... + 480095339.

It is an arithmetic number, because the mean of its divisors is an integer number (1116325546200).

Almost surely, 2^{23421221242502} is an apocalyptic number.

23421221242502 is a deficient number, since it is larger than the sum of its proper divisors (12301196235898).

23421221242502 is a wasteful number, since it uses less digits than its factorization.

23421221242502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55436.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 23421221242502 its reverse (20524212212432), we get a palindrome (43945433454934).

The spelling of 23421221242502 in words is "twenty-three trillion, four hundred twenty-one billion, two hundred twenty-one million, two hundred forty-two thousand, five hundred two".