1121111020247 has 2 divisors, whose sum is σ = 1121111020248. Its totient is φ = 1121111020246.

The previous prime is 1121111020153. The next prime is 1121111020259. The reversal of 1121111020247 is 7420201111211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121111020247 - 2³⁸ = 846233113303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121111020277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560555510123 + 560555510124.

It is an arithmetic number, because the mean of its divisors is an integer number (560555510124).

Almost surely, 2^{1121111020247} is an apocalyptic number.

1121111020247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121111020247 is an equidigital number, since it uses as much as digits as its factorization.

1121111020247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 1121111020247 its reverse (7420201111211), we get a palindrome (8541312131458).

The spelling of 1121111020247 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, twenty thousand, two hundred forty-seven".