201267082391 has 2 divisors, whose sum is σ = 201267082392. Its totient is φ = 201267082390.

The previous prime is 201267082361. The next prime is 201267082417. The reversal of 201267082391 is 193280762102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201267082391 - 2¹⁸ = 201266820247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201267082361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100633541195 + 100633541196.

It is an arithmetic number, because the mean of its divisors is an integer number (100633541196).

Almost surely, 2^201267082391 is an apocalyptic number.

201267082391 is a deficient number, since it is larger than the sum of its proper divisors (1).

201267082391 is an equidigital number, since it uses as much as digits as its factorization.

201267082391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 201267082391 in words is "two hundred one billion, two hundred sixty-seven million, eighty-two thousand, three hundred ninety-one".