423142031 has 6 divisors (see below), whose sum is σ = 458195400. Its totient is φ = 390592488.

The previous prime is 423142007. The next prime is 423142039. The reversal of 423142031 is 130241324.

It is not a de Polignac number, because 423142031 - 2⁶ = 423141967 is a prime.

It is a super-2 number, since 2×423142031² = 358098356797609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423141994 and 423142012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423142039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1251731 + ... + 1252068.

It is an arithmetic number, because the mean of its divisors is an integer number (76365900).

Almost surely, 2^423142031 is an apocalyptic number.

423142031 is a deficient number, since it is larger than the sum of its proper divisors (35053369).

423142031 is a wasteful number, since it uses less digits than its factorization.

423142031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503825 (or 2503812 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 423142031 is about 20570.4164031747. The cubic root of 423142031 is about 750.7500827696.

Adding to 423142031 its reverse (130241324), we get a palindrome (553383355).

The spelling of 423142031 in words is "four hundred twenty-three million, one hundred forty-two thousand, thirty-one".