15323242123 has 48 divisors (see below), whose sum is σ = 19087970304. Its totient is φ = 12242301120.

The previous prime is 15323242087. The next prime is 15323242177. The reversal of 15323242123 is 32124232351.

It is a happy number.

15323242123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15323242123 - 2²⁹ = 14786371211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15323242091 and 15323242100.

It is not an unprimeable number, because it can be changed into a prime (15323242423) 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 47 ways as a sum of consecutive naturals, for example, 5787586 + ... + 5790232.

It is an arithmetic number, because the mean of its divisors is an integer number (397666048).

Almost surely, 2^15323242123 is an apocalyptic number.

15323242123 is a deficient number, since it is larger than the sum of its proper divisors (3764728181).

15323242123 is a wasteful number, since it uses less digits than its factorization.

15323242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832 (or 2825 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

Adding to 15323242123 its reverse (32124232351), we get a palindrome (47447474474).

The spelling of 15323242123 in words is "fifteen billion, three hundred twenty-three million, two hundred forty-two thousand, one hundred twenty-three".