1122340991 has 2 divisors, whose sum is σ = 1122340992. Its totient is φ = 1122340990.

The previous prime is 1122340931. The next prime is 1122341029. The reversal of 1122340991 is 1990432211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122340991 - 2¹⁴ = 1122324607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122340931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561170495 + 561170496.

It is an arithmetic number, because the mean of its divisors is an integer number (561170496).

Almost surely, 2^1122340991 is an apocalyptic number.

1122340991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122340991 is an equidigital number, since it uses as much as digits as its factorization.

1122340991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1122340991 is about 33501.3580471001. The cubic root of 1122340991 is about 1039.2218633881.

The spelling of 1122340991 in words is "one billion, one hundred twenty-two million, three hundred forty thousand, nine hundred ninety-one".