1121340047 has 2 divisors, whose sum is σ = 1121340048. Its totient is φ = 1121340046.

The previous prime is 1121340041. The next prime is 1121340127. The reversal of 1121340047 is 7400431211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121340047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121340041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560670023 + 560670024.

It is an arithmetic number, because the mean of its divisors is an integer number (560670024).

Almost surely, 2^1121340047 is an apocalyptic number.

1121340047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121340047 is an equidigital number, since it uses as much as digits as its factorization.

1121340047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1121340047 is about 33486.4158577773. The cubic root of 1121340047 is about 1038.9128330428.

Adding to 1121340047 its reverse (7400431211), we get a palindrome (8521771258).

The spelling of 1121340047 in words is "one billion, one hundred twenty-one million, three hundred forty thousand, forty-seven".