423203031 has 12 divisors (see below), whose sum is σ = 613621008. Its totient is φ = 281061024.

The previous prime is 423203023. The next prime is 423203089. The reversal of 423203031 is 130302324.

423203031 is a `hidden beast` number, since 42 + 320 + 303 + 1 = 666.

It is not a de Polignac number, because 423203031 - 2³ = 423203023 is a prime.

It is a super-2 number, since 2×423203031² = 358201610895173922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423202995 and 423203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423208031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87030 + ... + 91763.

It is an arithmetic number, because the mean of its divisors is an integer number (51135084).

Almost surely, 2^423203031 is an apocalyptic number.

423203031 is a deficient number, since it is larger than the sum of its proper divisors (190417977).

423203031 is a wasteful number, since it uses less digits than its factorization.

423203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179062 (or 179059 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 423203031 is about 20571.8990615840. The cubic root of 423203031 is about 750.7861569883.

Adding to 423203031 its reverse (130302324), we get a palindrome (553505355).

The spelling of 423203031 in words is "four hundred twenty-three million, two hundred three thousand, thirty-one".