4002133391 has 2 divisors, whose sum is σ = 4002133392. Its totient is φ = 4002133390.

The previous prime is 4002133361. The next prime is 4002133393. The reversal of 4002133391 is 1933312004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4002133391 - 2⁶ = 4002133327 is a prime.

Together with 4002133393, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4002133391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4002133393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001066695 + 2001066696.

It is an arithmetic number, because the mean of its divisors is an integer number (2001066696).

Almost surely, 2^4002133391 is an apocalyptic number.

4002133391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002133391 is an equidigital number, since it uses as much as digits as its factorization.

4002133391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 4002133391 is about 63262.4168918640. The cubic root of 4002133391 is about 1587.6832140704.

Adding to 4002133391 its reverse (1933312004), we get a palindrome (5935445395).

The spelling of 4002133391 in words is "four billion, two million, one hundred thirty-three thousand, three hundred ninety-one".