423003131 has 2 divisors, whose sum is σ = 423003132. Its totient is φ = 423003130.

The previous prime is 423003127. The next prime is 423003157. The reversal of 423003131 is 131300324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423003131 - 2² = 423003127 is a prime.

It is a super-2 number, since 2×423003131² = 357863297671606322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423003101) 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, 211501565 + 211501566.

It is an arithmetic number, because the mean of its divisors is an integer number (211501566).

Almost surely, 2^423003131 is an apocalyptic number.

423003131 is a deficient number, since it is larger than the sum of its proper divisors (1).

423003131 is an equidigital number, since it uses as much as digits as its factorization.

423003131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 423003131 is about 20567.0399182770. The cubic root of 423003131 is about 750.6679270621.

Adding to 423003131 its reverse (131300324), we get a palindrome (554303455).

The spelling of 423003131 in words is "four hundred twenty-three million, three thousand, one hundred thirty-one".