12954127123 has 4 divisors (see below), whose sum is σ = 14804716720. Its totient is φ = 11103537528.

The previous prime is 12954127117. The next prime is 12954127159. The reversal of 12954127123 is 32172145921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32172145921 = 47 ⋅684513743.

It is a cyclic number.

It is not a de Polignac number, because 12954127123 - 2³³ = 4364192531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12954127423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925294788 + ... + 925294801.

It is an arithmetic number, because the mean of its divisors is an integer number (3701179180).

Almost surely, 2^12954127123 is an apocalyptic number.

12954127123 is a deficient number, since it is larger than the sum of its proper divisors (1850589597).

12954127123 is an equidigital number, since it uses as much as digits as its factorization.

12954127123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850589596.

The product of its digits is 30240, while the sum is 37.

The spelling of 12954127123 in words is "twelve billion, nine hundred fifty-four million, one hundred twenty-seven thousand, one hundred twenty-three".