15342523545123 has 12 divisors (see below), whose sum is σ = 23327813577640. Its totient is φ = 9690014870496.

The previous prime is 15342523545049. The next prime is 15342523545127. The reversal of 15342523545123 is 32154532524351.

15342523545123 is a `hidden beast` number, since 1 + 5 + 3 + 4 + 2 + 523 + 54 + 51 + 23 = 666.

It is not a de Polignac number, because 15342523545123 - 2¹² = 15342523541027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15342523545127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44861179786 + ... + 44861180127.

Almost surely, 2^{15342523545123} is an apocalyptic number.

15342523545123 is a deficient number, since it is larger than the sum of its proper divisors (7985290032517).

15342523545123 is a wasteful number, since it uses less digits than its factorization.

15342523545123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89722359938 (or 89722359935 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The spelling of 15342523545123 in words is "fifteen trillion, three hundred forty-two billion, five hundred twenty-three million, five hundred forty-five thousand, one hundred twenty-three".