1012002011191 has 2 divisors, whose sum is σ = 1012002011192. Its totient is φ = 1012002011190.

The previous prime is 1012002011161. The next prime is 1012002011213. The reversal of 1012002011191 is 1911102002101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012002011191 - 2⁷ = 1012002011063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012002011131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506001005595 + 506001005596.

It is an arithmetic number, because the mean of its divisors is an integer number (506001005596).

Almost surely, 2^{1012002011191} is an apocalyptic number.

1012002011191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012002011191 is an equidigital number, since it uses as much as digits as its factorization.

1012002011191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 1012002011191 its reverse (1911102002101), we get a palindrome (2923104013292).

The spelling of 1012002011191 in words is "one trillion, twelve billion, two million, eleven thousand, one hundred ninety-one".