22523151005423 has 4 divisors (see below), whose sum is σ = 22536147632088. Its totient is φ = 22510154378760.

The previous prime is 22523151005419. The next prime is 22523151005429. The reversal of 22523151005423 is 32450015132522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22523151005423 - 2² = 22523151005419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22523151005429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6498310733 + ... + 6498314198.

It is an arithmetic number, because the mean of its divisors is an integer number (5634036908022).

Almost surely, 2^{22523151005423} is an apocalyptic number.

22523151005423 is a deficient number, since it is larger than the sum of its proper divisors (12996626665).

22523151005423 is a wasteful number, since it uses less digits than its factorization.

22523151005423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12996626664.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 22523151005423 its reverse (32450015132522), we get a palindrome (54973166137945).

The spelling of 22523151005423 in words is "twenty-two trillion, five hundred twenty-three billion, one hundred fifty-one million, five thousand, four hundred twenty-three".