22500321131 has 4 divisors (see below), whose sum is σ = 22568298264. Its totient is φ = 22432344000.

The previous prime is 22500321073. The next prime is 22500321149. The reversal of 22500321131 is 13112300522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22500321131 - 2²² = 22496126827 is a prime.

It is a super-3 number, since 3×22500321131³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22500321331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33988070 + ... + 33988731.

It is an arithmetic number, because the mean of its divisors is an integer number (5642074566).

Almost surely, 2^22500321131 is an apocalyptic number.

22500321131 is a deficient number, since it is larger than the sum of its proper divisors (67977133).

22500321131 is an equidigital number, since it uses as much as digits as its factorization.

22500321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67977132.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 22500321131 its reverse (13112300522), we get a palindrome (35612621653).

The spelling of 22500321131 in words is "twenty-two billion, five hundred million, three hundred twenty-one thousand, one hundred thirty-one".