13540325923 has 4 divisors (see below), whose sum is σ = 13540689720. Its totient is φ = 13539962128.

The previous prime is 13540325893. The next prime is 13540325947. The reversal of 13540325923 is 32952304531.

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 13540325923 - 2⁹ = 13540325411 is a prime.

It is a super-2 number, since 2×13540325923² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13540325023) 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, 118765 + ... + 202942.

It is an arithmetic number, because the mean of its divisors is an integer number (3385172430).

Almost surely, 2^13540325923 is an apocalyptic number.

13540325923 is a deficient number, since it is larger than the sum of its proper divisors (363797).

13540325923 is an equidigital number, since it uses as much as digits as its factorization.

13540325923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363796.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 13540325923 in words is "thirteen billion, five hundred forty million, three hundred twenty-five thousand, nine hundred twenty-three".