1211011320199 has 2 divisors, whose sum is σ = 1211011320200. Its totient is φ = 1211011320198.

The previous prime is 1211011320149. The next prime is 1211011320209. The reversal of 1211011320199 is 9910231101121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211011320199 - 2²⁹ = 1210474449287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211011320199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211011320109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605505660099 + 605505660100.

It is an arithmetic number, because the mean of its divisors is an integer number (605505660100).

Almost surely, 2^{1211011320199} is an apocalyptic number.

1211011320199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211011320199 is an equidigital number, since it uses as much as digits as its factorization.

1211011320199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 31.

The spelling of 1211011320199 in words is "one trillion, two hundred eleven billion, eleven million, three hundred twenty thousand, one hundred ninety-nine".