22155234523 has 2 divisors, whose sum is σ = 22155234524. Its totient is φ = 22155234522.

The previous prime is 22155234503. The next prime is 22155234527. The reversal of 22155234523 is 32543255122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22155234523 - 2⁹ = 22155234011 is a prime.

It is not a weakly prime, because it can be changed into another prime (22155234527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077617261 + 11077617262.

It is an arithmetic number, because the mean of its divisors is an integer number (11077617262).

Almost surely, 2^22155234523 is an apocalyptic number.

22155234523 is a deficient number, since it is larger than the sum of its proper divisors (1).

22155234523 is an equidigital number, since it uses as much as digits as its factorization.

22155234523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 34.

Adding to 22155234523 its reverse (32543255122), we get a palindrome (54698489645).

The spelling of 22155234523 in words is "twenty-two billion, one hundred fifty-five million, two hundred thirty-four thousand, five hundred twenty-three".