22731506811043 has 2 divisors, whose sum is σ = 22731506811044. Its totient is φ = 22731506811042.

The previous prime is 22731506811017. The next prime is 22731506811127. The reversal of 22731506811043 is 34011860513722.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22731506811043 is a prime.

It is not a weakly prime, because it can be changed into another prime (22731506814043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11365753405521 + 11365753405522.

It is an arithmetic number, because the mean of its divisors is an integer number (11365753405522).

Almost surely, 2^{22731506811043} is an apocalyptic number.

22731506811043 is a deficient number, since it is larger than the sum of its proper divisors (1).

22731506811043 is an equidigital number, since it uses as much as digits as its factorization.

22731506811043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 22731506811043 in words is "twenty-two trillion, seven hundred thirty-one billion, five hundred six million, eight hundred eleven thousand, forty-three".