12105420419 has 2 divisors, whose sum is σ = 12105420420. Its totient is φ = 12105420418.

The previous prime is 12105420373. The next prime is 12105420433. The reversal of 12105420419 is 91402450121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12105420419 - 2²⁰ = 12104371843 is a prime.

It is a super-2 number, since 2×12105420419² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12105420391 and 12105420400.

It is not a weakly prime, because it can be changed into another prime (12105420449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052710209 + 6052710210.

It is an arithmetic number, because the mean of its divisors is an integer number (6052710210).

Almost surely, 2^12105420419 is an apocalyptic number.

12105420419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105420419 is an equidigital number, since it uses as much as digits as its factorization.

12105420419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 12105420419 in words is "twelve billion, one hundred five million, four hundred twenty thousand, four hundred nineteen".