12154535323 has 4 divisors (see below), whose sum is σ = 13890897520. Its totient is φ = 10418173128.

The previous prime is 12154535317. The next prime is 12154535377. The reversal of 12154535323 is 32353545121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32353545121 = 17 ⋅1903149713.

It is a cyclic number.

It is not a de Polignac number, because 12154535323 - 2²⁵ = 12120980891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12154535123) 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, 868181088 + ... + 868181101.

It is an arithmetic number, because the mean of its divisors is an integer number (3472724380).

Almost surely, 2^12154535323 is an apocalyptic number.

12154535323 is a deficient number, since it is larger than the sum of its proper divisors (1736362197).

12154535323 is an equidigital number, since it uses as much as digits as its factorization.

12154535323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736362196.

The product of its digits is 54000, while the sum is 34.

The spelling of 12154535323 in words is "twelve billion, one hundred fifty-four million, five hundred thirty-five thousand, three hundred twenty-three".