1123837217 has 2 divisors, whose sum is σ = 1123837218. Its totient is φ = 1123837216.

The previous prime is 1123837151. The next prime is 1123837219. The reversal of 1123837217 is 7127383211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123657441 + 179776 = 33521^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123837217 - 2¹⁸ = 1123575073 is a prime.

Together with 1123837219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1123837219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561918608 + 561918609.

It is an arithmetic number, because the mean of its divisors is an integer number (561918609).

Almost surely, 2^1123837217 is an apocalyptic number.

It is an amenable number.

1123837217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123837217 is an equidigital number, since it uses as much as digits as its factorization.

1123837217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 1123837217 is about 33523.6814356657. The cubic root of 1123837217 is about 1039.6834641344.

The spelling of 1123837217 in words is "one billion, one hundred twenty-three million, eight hundred thirty-seven thousand, two hundred seventeen".