22311020131 has 2 divisors, whose sum is σ = 22311020132. Its totient is φ = 22311020130.

The previous prime is 22311020107. The next prime is 22311020159. The reversal of 22311020131 is 13102011322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22311020131 - 2¹⁹ = 22310495843 is a prime.

It is a super-3 number, since 3×22311020131³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (22311023131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11155510065 + 11155510066.

It is an arithmetic number, because the mean of its divisors is an integer number (11155510066).

Almost surely, 2^22311020131 is an apocalyptic number.

22311020131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22311020131 is an equidigital number, since it uses as much as digits as its factorization.

22311020131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22311020131 its reverse (13102011322), we get a palindrome (35413031453).

The spelling of 22311020131 in words is "twenty-two billion, three hundred eleven million, twenty thousand, one hundred thirty-one".