15143235432123 has 16 divisors (see below), whose sum is σ = 20199032650400. Its totient is φ = 10091464704000.

The previous prime is 15143235432007. The next prime is 15143235432203. The reversal of 15143235432123 is 32123453234151.

It is a happy number.

It is not a de Polignac number, because 15143235432123 - 2⁸ = 15143235431867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15143235432223) 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, 164609883 + ... + 164701851.

It is an arithmetic number, because the mean of its divisors is an integer number (1262439540650).

Almost surely, 2^{15143235432123} is an apocalyptic number.

15143235432123 is a deficient number, since it is larger than the sum of its proper divisors (5055797218277).

15143235432123 is a wasteful number, since it uses less digits than its factorization.

15143235432123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113262.

The product of its digits is 259200, while the sum is 39.

Adding to 15143235432123 its reverse (32123453234151), we get a palindrome (47266688666274).

The spelling of 15143235432123 in words is "fifteen trillion, one hundred forty-three billion, two hundred thirty-five million, four hundred thirty-two thousand, one hundred twenty-three".