1121199697 has 2 divisors, whose sum is σ = 1121199698. Its totient is φ = 1121199696.

The previous prime is 1121199647. The next prime is 1121199701. The reversal of 1121199697 is 7969911211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 867243601 + 253956096 = 29449^2 + 15936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121199697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121199637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560599848 + 560599849.

It is an arithmetic number, because the mean of its divisors is an integer number (560599849).

Almost surely, 2^1121199697 is an apocalyptic number.

It is an amenable number.

1121199697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121199697 is an equidigital number, since it uses as much as digits as its factorization.

1121199697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 46.

The square root of 1121199697 is about 33484.3201663107. The cubic root of 1121199697 is about 1038.8694868398.

The spelling of 1121199697 in words is "one billion, one hundred twenty-one million, one hundred ninety-nine thousand, six hundred ninety-seven".