201201201791 has 2 divisors, whose sum is σ = 201201201792. Its totient is φ = 201201201790.

The previous prime is 201201201749. The next prime is 201201201811. The reversal of 201201201791 is 197102102102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201201201791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201201201791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201201201491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600600895 + 100600600896.

It is an arithmetic number, because the mean of its divisors is an integer number (100600600896).

Almost surely, 2^201201201791 is an apocalyptic number.

201201201791 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201201791 is an equidigital number, since it uses as much as digits as its factorization.

201201201791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 201201201791 its reverse (197102102102), we get a palindrome (398303303893).

The spelling of 201201201791 in words is "two hundred one billion, two hundred one million, two hundred one thousand, seven hundred ninety-one".