23221205131 has 8 divisors (see below), whose sum is σ = 24723002304. Its totient is φ = 21734501760.

The previous prime is 23221205107. The next prime is 23221205209. The reversal of 23221205131 is 13150212232.

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

It is a cyclic number.

It is not a de Polignac number, because 23221205131 - 2¹⁷ = 23221074059 is a prime.

It is a super-2 number, since 2×23221205131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221205431) by changing a digit.

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, 3770275 + ... + 3776428.

It is an arithmetic number, because the mean of its divisors is an integer number (3090375288).

Almost surely, 2^23221205131 is an apocalyptic number.

23221205131 is a deficient number, since it is larger than the sum of its proper divisors (1501797173).

23221205131 is a wasteful number, since it uses less digits than its factorization.

23221205131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546901.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 23221205131 its reverse (13150212232), we get a palindrome (36371417363).

The spelling of 23221205131 in words is "twenty-three billion, two hundred twenty-one million, two hundred five thousand, one hundred thirty-one".