831235423 has 2 divisors, whose sum is σ = 831235424. Its totient is φ = 831235422.

The previous prime is 831235397. The next prime is 831235453. The reversal of 831235423 is 324532138.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 831235423 - 2¹³ = 831227231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (831235453) 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, 415617711 + 415617712.

It is an arithmetic number, because the mean of its divisors is an integer number (415617712).

Almost surely, 2^831235423 is an apocalyptic number.

831235423 is a deficient number, since it is larger than the sum of its proper divisors (1).

831235423 is an equidigital number, since it uses as much as digits as its factorization.

831235423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 831235423 is about 28831.1536883282. The cubic root of 831235423 is about 940.2456815948.

The spelling of 831235423 in words is "eight hundred thirty-one million, two hundred thirty-five thousand, four hundred twenty-three".