423412531 has 2 divisors, whose sum is σ = 423412532. Its totient is φ = 423412530.

The previous prime is 423412513. The next prime is 423412541. The reversal of 423412531 is 135214324.

Together with previous prime (423412513) 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 423412531 - 2⁷ = 423412403 is a prime.

It is a super-2 number, since 2×423412531² = 358556342815651922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423412496 and 423412505.

It is not a weakly prime, because it can be changed into another prime (423412501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211706265 + 211706266.

It is an arithmetic number, because the mean of its divisors is an integer number (211706266).

Almost surely, 2^423412531 is an apocalyptic number.

423412531 is a deficient number, since it is larger than the sum of its proper divisors (1).

423412531 is an equidigital number, since it uses as much as digits as its factorization.

423412531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 423412531 is about 20576.9903290058. The cubic root of 423412531 is about 750.9100248413.

Adding to 423412531 its reverse (135214324), we get a palindrome (558626855).

The spelling of 423412531 in words is "four hundred twenty-three million, four hundred twelve thousand, five hundred thirty-one".