22000456523 has 2 divisors, whose sum is σ = 22000456524. Its totient is φ = 22000456522.

The previous prime is 22000456453. The next prime is 22000456529. The reversal of 22000456523 is 32565400022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22000456523 - 2¹² = 22000452427 is a prime.

It is not a weakly prime, because it can be changed into another prime (22000456529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000228261 + 11000228262.

It is an arithmetic number, because the mean of its divisors is an integer number (11000228262).

Almost surely, 2^22000456523 is an apocalyptic number.

22000456523 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000456523 is an equidigital number, since it uses as much as digits as its factorization.

22000456523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 22000456523 its reverse (32565400022), we get a palindrome (54565856545).

The spelling of 22000456523 in words is "twenty-two billion, four hundred fifty-six thousand, five hundred twenty-three".