201111021149 has 2 divisors, whose sum is σ = 201111021150. Its totient is φ = 201111021148.

The previous prime is 201111021109. The next prime is 201111021217. The reversal of 201111021149 is 941120111102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200989029124 + 121992025 = 448318^2 + 11045^2 .

It is a cyclic number.

It is not a de Polignac number, because 201111021149 - 2⁸ = 201111020893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201111021109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555510574 + 100555510575.

It is an arithmetic number, because the mean of its divisors is an integer number (100555510575).

Almost surely, 2^201111021149 is an apocalyptic number.

It is an amenable number.

201111021149 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111021149 is an equidigital number, since it uses as much as digits as its factorization.

201111021149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 201111021149 in words is "two hundred one billion, one hundred eleven million, twenty-one thousand, one hundred forty-nine".