1123105559 has 2 divisors, whose sum is σ = 1123105560. Its totient is φ = 1123105558.

The previous prime is 1123105547. The next prime is 1123105573. The reversal of 1123105559 is 9555013211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123105559 is a prime.

It is a super-2 number, since 2×1123105559² = 2522732193313404962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123105259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561552779 + 561552780.

It is an arithmetic number, because the mean of its divisors is an integer number (561552780).

Almost surely, 2^1123105559 is an apocalyptic number.

1123105559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123105559 is an equidigital number, since it uses as much as digits as its factorization.

1123105559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 1123105559 is about 33512.7671044932. The cubic root of 1123105559 is about 1039.4577915158.

The spelling of 1123105559 in words is "one billion, one hundred twenty-three million, one hundred five thousand, five hundred fifty-nine".