420327031 has 4 divisors (see below), whose sum is σ = 420407064. Its totient is φ = 420247000.

The previous prime is 420327013. The next prime is 420327043. The reversal of 420327031 is 130723024.

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 420327031 - 2⁹ = 420326519 is a prime.

It is a super-2 number, since 2×420327031² = 353349625978549922, 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 = 420326993 and 420327011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420327071) 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 in 3 ways as a sum of consecutive naturals, for example, 31540 + ... + 42841.

It is an arithmetic number, because the mean of its divisors is an integer number (105101766).

Almost surely, 2^420327031 is an apocalyptic number.

420327031 is a deficient number, since it is larger than the sum of its proper divisors (80033).

420327031 is an equidigital number, since it uses as much as digits as its factorization.

420327031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80032.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 420327031 is about 20501.8787187906. The cubic root of 420327031 is about 749.0815607887.

The spelling of 420327031 in words is "four hundred twenty million, three hundred twenty-seven thousand, thirty-one".