231327773 has 2 divisors, whose sum is σ = 231327774. Its totient is φ = 231327772.

The previous prime is 231327769. The next prime is 231327779. The reversal of 231327773 is 377723132.

231327773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222695929 + 8631844 = 14923^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 231327773 - 2² = 231327769 is a prime.

It is a super-2 number, since 2×231327773² = 107025077122279058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231327779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115663886 + 115663887.

It is an arithmetic number, because the mean of its divisors is an integer number (115663887).

Almost surely, 2^231327773 is an apocalyptic number.

It is an amenable number.

231327773 is a deficient number, since it is larger than the sum of its proper divisors (1).

231327773 is an equidigital number, since it uses as much as digits as its factorization.

231327773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37044, while the sum is 35.

The square root of 231327773 is about 15209.4632712663. The cubic root of 231327773 is about 613.8693156283.

The spelling of 231327773 in words is "two hundred thirty-one million, three hundred twenty-seven thousand, seven hundred seventy-three".