201001111193 has 2 divisors, whose sum is σ = 201001111194. Its totient is φ = 201001111192.

The previous prime is 201001111159. The next prime is 201001111217. The reversal of 201001111193 is 391111100102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127075851529 + 73925259664 = 356477^2 + 271892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201001111193 is a prime.

It is not a weakly prime, because it can be changed into another prime (201001111123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500555596 + 100500555597.

It is an arithmetic number, because the mean of its divisors is an integer number (100500555597).

Almost surely, 2^201001111193 is an apocalyptic number.

It is an amenable number.

201001111193 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001111193 is an equidigital number, since it uses as much as digits as its factorization.

201001111193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 201001111193 its reverse (391111100102), we get a palindrome (592112211295).

The spelling of 201001111193 in words is "two hundred one billion, one million, one hundred eleven thousand, one hundred ninety-three".