1123936687 has 2 divisors, whose sum is σ = 1123936688. Its totient is φ = 1123936686.

The previous prime is 1123936637. The next prime is 1123936703. The reversal of 1123936687 is 7866393211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123936687 - 2⁷ = 1123936559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123936637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561968343 + 561968344.

It is an arithmetic number, because the mean of its divisors is an integer number (561968344).

Almost surely, 2^1123936687 is an apocalyptic number.

1123936687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123936687 is an equidigital number, since it uses as much as digits as its factorization.

1123936687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 1123936687 is about 33525.1649809512. The cubic root of 1123936687 is about 1039.7141371007.

The spelling of 1123936687 in words is "one billion, one hundred twenty-three million, nine hundred thirty-six thousand, six hundred eighty-seven".