23221121313 has 8 divisors (see below), whose sum is σ = 33343148608. Its totient is φ = 14289920784.

The previous prime is 23221121269. The next prime is 23221121387. The reversal of 23221121313 is 31312112232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23221121313 - 2⁹ = 23221120801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23221121313.

It is not an unprimeable number, because it can be changed into a prime (23221121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297706645 + ... + 297706722.

It is an arithmetic number, because the mean of its divisors is an integer number (4167893576).

Almost surely, 2^23221121313 is an apocalyptic number.

It is an amenable number.

23221121313 is a deficient number, since it is larger than the sum of its proper divisors (10122027295).

23221121313 is a wasteful number, since it uses less digits than its factorization.

23221121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595413383.

The product of its digits is 432, while the sum is 21.

Adding to 23221121313 its reverse (31312112232), we get a palindrome (54533233545).

The spelling of 23221121313 in words is "twenty-three billion, two hundred twenty-one million, one hundred twenty-one thousand, three hundred thirteen".