23122154005 has 16 divisors (see below), whose sum is σ = 28210698864. Its totient is φ = 18188513280.

The previous prime is 23122153963. The next prime is 23122154009. The reversal of 23122154005 is 50045122132.

It can be written as a sum of positive squares in 8 ways, for example, as 9822990321 + 13299163684 = 99111^2 + 115322^2 .

It is not a de Polignac number, because 23122154005 - 2¹¹ = 23122151957 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 (23122154009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1074229 + ... + 1095541.

It is an arithmetic number, because the mean of its divisors is an integer number (1763168679).

Almost surely, 2^23122154005 is an apocalyptic number.

It is an amenable number.

23122154005 is a deficient number, since it is larger than the sum of its proper divisors (5088544859).

23122154005 is a wasteful number, since it uses less digits than its factorization.

23122154005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24936.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 23122154005 its reverse (50045122132), we get a palindrome (73167276137).

The spelling of 23122154005 in words is "twenty-three billion, one hundred twenty-two million, one hundred fifty-four thousand, five".