12146306523 has 16 divisors (see below), whose sum is σ = 18466783776. Its totient is φ = 7034964480.

The previous prime is 12146306521. The next prime is 12146306551. The reversal of 12146306523 is 32560364121.

It is not a de Polignac number, because 12146306523 - 2¹ = 12146306521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12146306521) 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, 9159448 + ... + 9160773.

It is an arithmetic number, because the mean of its divisors is an integer number (1154173986).

Almost surely, 2^12146306523 is an apocalyptic number.

12146306523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12146306523 is a deficient number, since it is larger than the sum of its proper divisors (6320477253).

12146306523 is a wasteful number, since it uses less digits than its factorization.

12146306523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18320254.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 12146306523 in words is "twelve billion, one hundred forty-six million, three hundred six thousand, five hundred twenty-three".