1161326923 has 2 divisors, whose sum is σ = 1161326924. Its totient is φ = 1161326922.

The previous prime is 1161326917. The next prime is 1161326963. The reversal of 1161326923 is 3296231611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161326923 - 2⁵ = 1161326891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161326963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580663461 + 580663462.

It is an arithmetic number, because the mean of its divisors is an integer number (580663462).

Almost surely, 2^1161326923 is an apocalyptic number.

1161326923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161326923 is an equidigital number, since it uses as much as digits as its factorization.

1161326923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 1161326923 is about 34078.2470646599. The cubic root of 1161326923 is about 1051.1180601415.

The spelling of 1161326923 in words is "one billion, one hundred sixty-one million, three hundred twenty-six thousand, nine hundred twenty-three".