1111211019959 has 2 divisors, whose sum is σ = 1111211019960. Its totient is φ = 1111211019958.

The previous prime is 1111211019911. The next prime is 1111211020009. The reversal of 1111211019959 is 9599101121111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111211019959 - 2²⁸ = 1110942584503 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111211019059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605509979 + 555605509980.

It is an arithmetic number, because the mean of its divisors is an integer number (555605509980).

Almost surely, 2^{1111211019959} is an apocalyptic number.

1111211019959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111211019959 is an equidigital number, since it uses as much as digits as its factorization.

1111211019959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 41.

The spelling of 1111211019959 in words is "one trillion, one hundred eleven billion, two hundred eleven million, nineteen thousand, nine hundred fifty-nine".