20221303131 has 32 divisors (see below), whose sum is σ = 30943795200. Its totient is φ = 13037591520.

The previous prime is 20221303129. The next prime is 20221303181. The reversal of 20221303131 is 13130312202.

It is not a de Polignac number, because 20221303131 - 2¹ = 20221303129 is a prime.

It is a super-2 number, since 2×20221303131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20221303111) 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 31 ways as a sum of consecutive naturals, for example, 1455325 + ... + 1469153.

It is an arithmetic number, because the mean of its divisors is an integer number (966993600).

Almost surely, 2^20221303131 is an apocalyptic number.

20221303131 is a deficient number, since it is larger than the sum of its proper divisors (10722492069).

20221303131 is a wasteful number, since it uses less digits than its factorization.

20221303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15616 (or 15610 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20221303131 its reverse (13130312202), we get a palindrome (33351615333).

The spelling of 20221303131 in words is "twenty billion, two hundred twenty-one million, three hundred three thousand, one hundred thirty-one".