1123523977 has 2 divisors, whose sum is σ = 1123523978. Its totient is φ = 1123523976.

The previous prime is 1123523959. The next prime is 1123524007. The reversal of 1123523977 is 7793253211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1115292816 + 8231161 = 33396^2 + 2869^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123523977 - 2²⁷ = 989306249 is a prime.

It is a super-2 number, since 2×1123523977² = 2524612253787793058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123523927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561761988 + 561761989.

It is an arithmetic number, because the mean of its divisors is an integer number (561761989).

Almost surely, 2^1123523977 is an apocalyptic number.

It is an amenable number.

1123523977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123523977 is an equidigital number, since it uses as much as digits as its factorization.

1123523977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 1123523977 is about 33519.0091888170. The cubic root of 1123523977 is about 1039.5868603721.

The spelling of 1123523977 in words is "one billion, one hundred twenty-three million, five hundred twenty-three thousand, nine hundred seventy-seven".