423047131 has 4 divisors (see below), whose sum is σ = 455589232. Its totient is φ = 390505032.

The previous prime is 423047123. The next prime is 423047161. The reversal of 423047131 is 131740324.

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 423047131 - 2³ = 423047123 is a prime.

It is a super-2 number, since 2×423047131² = 357937750094662322, 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 = 423047096 and 423047105.

It is not an unprimeable number, because it can be changed into a prime (423047101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16271031 + ... + 16271056.

It is an arithmetic number, because the mean of its divisors is an integer number (113897308).

Almost surely, 2^423047131 is an apocalyptic number.

423047131 is a deficient number, since it is larger than the sum of its proper divisors (32542101).

423047131 is a wasteful number, since it uses less digits than its factorization.

423047131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32542100.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 423047131 is about 20568.1095631076. The cubic root of 423047131 is about 750.6939538542.

Adding to 423047131 its reverse (131740324), we get a palindrome (554787455).

The spelling of 423047131 in words is "four hundred twenty-three million, forty-seven thousand, one hundred thirty-one".