22113113131 has 2 divisors, whose sum is σ = 22113113132. Its totient is φ = 22113113130.

The previous prime is 22113113107. The next prime is 22113113149. The reversal of 22113113131 is 13131131122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22113113131 is a prime.

It is a super-2 number, since 2×22113113131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22113113099 and 22113113108.

It is not a weakly prime, because it can be changed into another prime (22113113531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056556565 + 11056556566.

It is an arithmetic number, because the mean of its divisors is an integer number (11056556566).

Almost surely, 2^22113113131 is an apocalyptic number.

22113113131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113113131 is an equidigital number, since it uses as much as digits as its factorization.

22113113131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

Adding to 22113113131 its reverse (13131131122), we get a palindrome (35244244253).

The spelling of 22113113131 in words is "twenty-two billion, one hundred thirteen million, one hundred thirteen thousand, one hundred thirty-one".