23122152553 has 4 divisors (see below), whose sum is σ = 23255806788. Its totient is φ = 22988498320.

The previous prime is 23122152527. The next prime is 23122152583. The reversal of 23122152553 is 35525122132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8806508649 + 14315643904 = 93843^2 + 119648^2 .

It is a cyclic number.

It is not a de Polignac number, because 23122152553 - 2¹³ = 23122144361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23122152583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66826858 + ... + 66827203.

It is an arithmetic number, because the mean of its divisors is an integer number (5813951697).

Almost surely, 2^23122152553 is an apocalyptic number.

It is an amenable number.

23122152553 is a deficient number, since it is larger than the sum of its proper divisors (133654235).

23122152553 is a wasteful number, since it uses less digits than its factorization.

23122152553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133654234.

The product of its digits is 18000, while the sum is 31.

Adding to 23122152553 its reverse (35525122132), we get a palindrome (58647274685).

The spelling of 23122152553 in words is "twenty-three billion, one hundred twenty-two million, one hundred fifty-two thousand, five hundred fifty-three".