2120121319 has 2 divisors, whose sum is σ = 2120121320. Its totient is φ = 2120121318.

The previous prime is 2120121313. The next prime is 2120121331. The reversal of 2120121319 is 9131210212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120121319 - 2¹⁹ = 2119597031 is a prime.

It is a super-2 number, since 2×2120121319² = 8989828814556599522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120121319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120121313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060060659 + 1060060660.

It is an arithmetic number, because the mean of its divisors is an integer number (1060060660).

Almost surely, 2^2120121319 is an apocalyptic number.

2120121319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120121319 is an equidigital number, since it uses as much as digits as its factorization.

2120121319 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 22.

The square root of 2120121319 is about 46044.7751541909. The cubic root of 2120121319 is about 1284.6561619979.

The spelling of 2120121319 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, three hundred nineteen".