4002321317 has 2 divisors, whose sum is σ = 4002321318. Its totient is φ = 4002321316.

The previous prime is 4002321299. The next prime is 4002321319. The reversal of 4002321317 is 7131232004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3974167681 + 28153636 = 63041^2 + 5306^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002321317 - 2²⁶ = 3935212453 is a prime.

It is a super-2 number, since 2×4002321317² = 32037151849025228978, which contains 22 as substring.

Together with 4002321319, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4002321292 and 4002321301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4002321319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001160658 + 2001160659.

It is an arithmetic number, because the mean of its divisors is an integer number (2001160659).

Almost surely, 2^4002321317 is an apocalyptic number.

It is an amenable number.

4002321317 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002321317 is an equidigital number, since it uses as much as digits as its factorization.

4002321317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 4002321317 is about 63263.9021638723. The cubic root of 4002321317 is about 1587.7080643404.

The spelling of 4002321317 in words is "four billion, two million, three hundred twenty-one thousand, three hundred seventeen".