4020201239 has 2 divisors, whose sum is σ = 4020201240. Its totient is φ = 4020201238.

The previous prime is 4020201233. The next prime is 4020201301. The reversal of 4020201239 is 9321020204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4020201239 - 2¹⁶ = 4020135703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020201233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010100619 + 2010100620.

It is an arithmetic number, because the mean of its divisors is an integer number (2010100620).

Almost surely, 2^4020201239 is an apocalyptic number.

4020201239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020201239 is an equidigital number, since it uses as much as digits as its factorization.

4020201239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4020201239 is about 63405.0568882325. The cubic root of 4020201239 is about 1590.0688549220.

The spelling of 4020201239 in words is "four billion, twenty million, two hundred one thousand, two hundred thirty-nine".