201311302193 has 2 divisors, whose sum is σ = 201311302194. Its totient is φ = 201311302192.

The previous prime is 201311302187. The next prime is 201311302373. The reversal of 201311302193 is 391203113102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143101054369 + 58210247824 = 378287^2 + 241268^2 .

It is a cyclic number.

It is not a de Polignac number, because 201311302193 - 2⁸ = 201311301937 is a prime.

It is not a weakly prime, because it can be changed into another prime (201311302103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100655651096 + 100655651097.

It is an arithmetic number, because the mean of its divisors is an integer number (100655651097).

Almost surely, 2^201311302193 is an apocalyptic number.

It is an amenable number.

201311302193 is a deficient number, since it is larger than the sum of its proper divisors (1).

201311302193 is an equidigital number, since it uses as much as digits as its factorization.

201311302193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 201311302193 its reverse (391203113102), we get a palindrome (592514415295).

The spelling of 201311302193 in words is "two hundred one billion, three hundred eleven million, three hundred two thousand, one hundred ninety-three".