231776423 has 4 divisors (see below), whose sum is σ = 232137528. Its totient is φ = 231415320.

The previous prime is 231776417. The next prime is 231776477. The reversal of 231776423 is 324677132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231776423 - 2²² = 227582119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231776483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179588 + ... + 180873.

It is an arithmetic number, because the mean of its divisors is an integer number (58034382).

Almost surely, 2^231776423 is an apocalyptic number.

231776423 is a deficient number, since it is larger than the sum of its proper divisors (361105).

231776423 is an equidigital number, since it uses as much as digits as its factorization.

231776423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361104.

The product of its digits is 42336, while the sum is 35.

The square root of 231776423 is about 15224.2051680868. The cubic root of 231776423 is about 614.2659168180.

The spelling of 231776423 in words is "two hundred thirty-one million, seven hundred seventy-six thousand, four hundred twenty-three".