15144042323 has 4 divisors (see below), whose sum is σ = 16034868360. Its totient is φ = 14253216288.

The previous prime is 15144042233. The next prime is 15144042371. The reversal of 15144042323 is 32324044151.

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 15144042323 - 2¹⁰ = 15144041299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15144042373) 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, 445412993 + ... + 445413026.

It is an arithmetic number, because the mean of its divisors is an integer number (4008717090).

Almost surely, 2^15144042323 is an apocalyptic number.

15144042323 is a deficient number, since it is larger than the sum of its proper divisors (890826037).

15144042323 is an equidigital number, since it uses as much as digits as its factorization.

15144042323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890826036.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 15144042323 its reverse (32324044151), we get a palindrome (47468086474).

The spelling of 15144042323 in words is "fifteen billion, one hundred forty-four million, forty-two thousand, three hundred twenty-three".