1123320149 has 6 divisors (see below), whose sum is σ = 1306719414. Its totient is φ = 962845800.

The previous prime is 1123320137. The next prime is 1123320151. The reversal of 1123320149 is 9410233211.

It can be written as a sum of positive squares in only one way, i.e., 784392049 + 338928100 = 28007^2 + 18410^2 .

It is not a de Polignac number, because 1123320149 - 2⁸ = 1123319893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123320179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11462402 + ... + 11462499.

It is an arithmetic number, because the mean of its divisors is an integer number (217786569).

Almost surely, 2^1123320149 is an apocalyptic number.

It is an amenable number.

1123320149 is a deficient number, since it is larger than the sum of its proper divisors (183399265).

1123320149 is an equidigital number, since it uses as much as digits as its factorization.

1123320149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22924915 (or 22924908 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1123320149 is about 33515.9685672367. The cubic root of 1123320149 is about 1039.5239898177.

The spelling of 1123320149 in words is "one billion, one hundred twenty-three million, three hundred twenty thousand, one hundred forty-nine".