4020021319 has 2 divisors, whose sum is σ = 4020021320. Its totient is φ = 4020021318.

The previous prime is 4020021293. The next prime is 4020021323. The reversal of 4020021319 is 9131200204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4020021319 - 2⁵ = 4020021287 is a prime.

It is a super-2 number, since 2×4020021319² = 32321142810428999522, 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 4020021319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020021389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010010659 + 2010010660.

It is an arithmetic number, because the mean of its divisors is an integer number (2010010660).

Almost surely, 2^4020021319 is an apocalyptic number.

4020021319 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020021319 is an equidigital number, since it uses as much as digits as its factorization.

4020021319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 4020021319 is about 63403.6380580799. The cubic root of 4020021319 is about 1590.0451339323.

The spelling of 4020021319 in words is "four billion, twenty million, twenty-one thousand, three hundred nineteen".