12120121319 has 2 divisors, whose sum is σ = 12120121320. Its totient is φ = 12120121318.

The previous prime is 12120121291. The next prime is 12120121333. The reversal of 12120121319 is 91312102121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120121319 is a prime.

It is a super-2 number, since 2×12120121319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120121294 and 12120121303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120129319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060060659 + 6060060660.

It is an arithmetic number, because the mean of its divisors is an integer number (6060060660).

Almost surely, 2^12120121319 is an apocalyptic number.

12120121319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120121319 is an equidigital number, since it uses as much as digits as its factorization.

12120121319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 12120121319 in words is "twelve billion, one hundred twenty million, one hundred twenty-one thousand, three hundred nineteen".