1123312049 has 2 divisors, whose sum is σ = 1123312050. Its totient is φ = 1123312048.

The previous prime is 1123312027. The next prime is 1123312093. The reversal of 1123312049 is 9402133211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1016334400 + 106977649 = 31880^2 + 10343^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123312049 - 2²⁰ = 1122263473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1123312849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561656024 + 561656025.

It is an arithmetic number, because the mean of its divisors is an integer number (561656025).

Almost surely, 2^1123312049 is an apocalyptic number.

It is an amenable number.

1123312049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123312049 is an equidigital number, since it uses as much as digits as its factorization.

1123312049 is an evil number, because the sum of its binary digits is even.

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

The square root of 1123312049 is about 33515.8477290968. The cubic root of 1123312049 is about 1039.5214912232.

The spelling of 1123312049 in words is "one billion, one hundred twenty-three million, three hundred twelve thousand, forty-nine".