423045131 has 4 divisors (see below), whose sum is σ = 423120264. Its totient is φ = 422970000.

The previous prime is 423045101. The next prime is 423045143. The reversal of 423045131 is 131540324.

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 423045131 - 2²⁶ = 355936267 is a prime.

It is a super-2 number, since 2×423045131² = 357934365725614322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423045097 and 423045106.

It is not an unprimeable number, because it can be changed into a prime (423045101) 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, 28370 + ... + 40631.

It is an arithmetic number, because the mean of its divisors is an integer number (105780066).

Almost surely, 2^423045131 is an apocalyptic number.

423045131 is a deficient number, since it is larger than the sum of its proper divisors (75133).

423045131 is an equidigital number, since it uses as much as digits as its factorization.

423045131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75132.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 423045131 is about 20568.0609440949. The cubic root of 423045131 is about 750.6927708573.

Adding to 423045131 its reverse (131540324), we get a palindrome (554585455).

The spelling of 423045131 in words is "four hundred twenty-three million, forty-five thousand, one hundred thirty-one".