23134225515521 has 4 divisors (see below), whose sum is σ = 23672230760112. Its totient is φ = 22596220270932.

The previous prime is 23134225515503. The next prime is 23134225515529. The reversal of 23134225515521 is 12551552243132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23134225515521 - 2²² = 23134221321217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23134225515529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269002622231 + ... + 269002622316.

It is an arithmetic number, because the mean of its divisors is an integer number (5918057690028).

Almost surely, 2^{23134225515521} is an apocalyptic number.

It is an amenable number.

23134225515521 is a deficient number, since it is larger than the sum of its proper divisors (538005244591).

23134225515521 is an equidigital number, since it uses as much as digits as its factorization.

23134225515521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538005244590.

The product of its digits is 360000, while the sum is 41.

Adding to 23134225515521 its reverse (12551552243132), we get a palindrome (35685777758653).

The spelling of 23134225515521 in words is "twenty-three trillion, one hundred thirty-four billion, two hundred twenty-five million, five hundred fifteen thousand, five hundred twenty-one".