12114478121 has 2 divisors, whose sum is σ = 12114478122. Its totient is φ = 12114478120.

The previous prime is 12114478111. The next prime is 12114478133. The reversal of 12114478121 is 12187441121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11827650025 + 286828096 = 108755^2 + 16936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12114478121 is a prime.

It is a super-3 number, since 3×12114478121³ (a number of 31 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12114478111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6057239060 + 6057239061.

It is an arithmetic number, because the mean of its divisors is an integer number (6057239061).

Almost surely, 2^12114478121 is an apocalyptic number.

It is an amenable number.

12114478121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12114478121 is an equidigital number, since it uses as much as digits as its factorization.

12114478121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 32.

The spelling of 12114478121 in words is "twelve billion, one hundred fourteen million, four hundred seventy-eight thousand, one hundred twenty-one".