1123771379 has 2 divisors, whose sum is σ = 1123771380. Its totient is φ = 1123771378.

The previous prime is 1123771309. The next prime is 1123771399. The reversal of 1123771379 is 9731773211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123771379 - 2⁸ = 1123771123 is a prime.

It is a super-2 number, since 2×1123771379² = 2525724224519123282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123771309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561885689 + 561885690.

It is an arithmetic number, because the mean of its divisors is an integer number (561885690).

Almost surely, 2^1123771379 is an apocalyptic number.

1123771379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123771379 is an equidigital number, since it uses as much as digits as its factorization.

1123771379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55566, while the sum is 41.

The square root of 1123771379 is about 33522.6994587250. The cubic root of 1123771379 is about 1039.6631610705.

The spelling of 1123771379 in words is "one billion, one hundred twenty-three million, seven hundred seventy-one thousand, three hundred seventy-nine".