15253513234123 has 4 divisors (see below), whose sum is σ = 15437290502088. Its totient is φ = 15069735966160.

The previous prime is 15253513234007. The next prime is 15253513234181. The reversal of 15253513234123 is 32143231535251.

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 15253513234123 - 2⁹ = 15253513233611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15253513234523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91888633858 + ... + 91888634023.

It is an arithmetic number, because the mean of its divisors is an integer number (3859322625522).

Almost surely, 2^{15253513234123} is an apocalyptic number.

15253513234123 is a deficient number, since it is larger than the sum of its proper divisors (183777267965).

15253513234123 is an equidigital number, since it uses as much as digits as its factorization.

15253513234123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183777267964.

The product of its digits is 324000, while the sum is 40.

Adding to 15253513234123 its reverse (32143231535251), we get a palindrome (47396744769374).

The spelling of 15253513234123 in words is "fifteen trillion, two hundred fifty-three billion, five hundred thirteen million, two hundred thirty-four thousand, one hundred twenty-three".