1123331207 has 2 divisors, whose sum is σ = 1123331208. Its totient is φ = 1123331206.

The previous prime is 1123331197. The next prime is 1123331273. The reversal of 1123331207 is 7021333211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123331207 - 2⁸ = 1123330951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123330207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561665603 + 561665604.

It is an arithmetic number, because the mean of its divisors is an integer number (561665604).

Almost surely, 2^1123331207 is an apocalyptic number.

1123331207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123331207 is an equidigital number, since it uses as much as digits as its factorization.

1123331207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1123331207 is about 33516.1335329718. The cubic root of 1123331207 is about 1039.5274008425.

Adding to 1123331207 its reverse (7021333211), we get a palindrome (8144664418).

The spelling of 1123331207 in words is "one billion, one hundred twenty-three million, three hundred thirty-one thousand, two hundred seven".