200321010391 has 2 divisors, whose sum is σ = 200321010392. Its totient is φ = 200321010390.

The previous prime is 200321010389. The next prime is 200321010397. The reversal of 200321010391 is 193010123002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200321010391 - 2¹ = 200321010389 is a prime.

It is a super-2 number, since 2×200321010391² (a number of 23 digits) contains 22 as substring.

Together with 200321010389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200321010397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100160505195 + 100160505196.

It is an arithmetic number, because the mean of its divisors is an integer number (100160505196).

Almost surely, 2^200321010391 is an apocalyptic number.

200321010391 is a deficient number, since it is larger than the sum of its proper divisors (1).

200321010391 is an equidigital number, since it uses as much as digits as its factorization.

200321010391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 200321010391 its reverse (193010123002), we get a palindrome (393331133393).

The spelling of 200321010391 in words is "two hundred billion, three hundred twenty-one million, ten thousand, three hundred ninety-one".