423133279 has 2 divisors, whose sum is σ = 423133280. Its totient is φ = 423133278.

The previous prime is 423133237. The next prime is 423133297. The reversal of 423133279 is 972331324.

Together with next prime (423133297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423133279 - 2¹¹ = 423131231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423133379) 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 as a sum of consecutive naturals, namely, 211566639 + 211566640.

It is an arithmetic number, because the mean of its divisors is an integer number (211566640).

Almost surely, 2^423133279 is an apocalyptic number.

423133279 is a deficient number, since it is larger than the sum of its proper divisors (1).

423133279 is an equidigital number, since it uses as much as digits as its factorization.

423133279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 423133279 is about 20570.2036693855. The cubic root of 423133279 is about 750.7449067218.

The spelling of 423133279 in words is "four hundred twenty-three million, one hundred thirty-three thousand, two hundred seventy-nine".