12140566123 has 16 divisors (see below), whose sum is σ = 14652642816. Its totient is φ = 9833820480.

The previous prime is 12140566111. The next prime is 12140566157. The reversal of 12140566123 is 32166504121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12140566123 - 2²¹ = 12138468971 is a prime.

It is a super-2 number, since 2×12140566123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12140566183) 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, 440898 + ... + 467623.

It is an arithmetic number, because the mean of its divisors is an integer number (915790176).

Almost surely, 2^12140566123 is an apocalyptic number.

12140566123 is a deficient number, since it is larger than the sum of its proper divisors (2512076693).

12140566123 is an equidigital number, since it uses as much as digits as its factorization.

12140566123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908634.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12140566123 in words is "twelve billion, one hundred forty million, five hundred sixty-six thousand, one hundred twenty-three".