201040400291 has 2 divisors, whose sum is σ = 201040400292. Its totient is φ = 201040400290.

The previous prime is 201040400273. The next prime is 201040400329. The reversal of 201040400291 is 192004040102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201040400291 - 2¹⁰ = 201040399267 is a prime.

It is not a weakly prime, because it can be changed into another prime (201040400791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100520200145 + 100520200146.

It is an arithmetic number, because the mean of its divisors is an integer number (100520200146).

Almost surely, 2^201040400291 is an apocalyptic number.

201040400291 is a deficient number, since it is larger than the sum of its proper divisors (1).

201040400291 is an equidigital number, since it uses as much as digits as its factorization.

201040400291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 201040400291 its reverse (192004040102), we get a palindrome (393044440393).

The spelling of 201040400291 in words is "two hundred one billion, forty million, four hundred thousand, two hundred ninety-one".