1121111021071 has 2 divisors, whose sum is σ = 1121111021072. Its totient is φ = 1121111021070.

The previous prime is 1121111021021. The next prime is 1121111021087. The reversal of 1121111021071 is 1701201111211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121111021071 - 2¹⁷ = 1121110889999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121111021021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560555510535 + 560555510536.

It is an arithmetic number, because the mean of its divisors is an integer number (560555510536).

Almost surely, 2^{1121111021071} is an apocalyptic number.

1121111021071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121111021071 is an equidigital number, since it uses as much as digits as its factorization.

1121111021071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 19.

Adding to 1121111021071 its reverse (1701201111211), we get a palindrome (2822312132282).

The spelling of 1121111021071 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, twenty-one thousand, seventy-one".