420431143 has 8 divisors (see below), whose sum is σ = 459866880. Its totient is φ = 381197880.

The previous prime is 420431113. The next prime is 420431147. The reversal of 420431143 is 341134024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420431143 - 2⁹ = 420430631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420431147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46255 + ... + 54592.

It is an arithmetic number, because the mean of its divisors is an integer number (57483360).

Almost surely, 2^420431143 is an apocalyptic number.

420431143 is a deficient number, since it is larger than the sum of its proper divisors (39435737).

420431143 is a wasteful number, since it uses less digits than its factorization.

420431143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101237.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 420431143 is about 20504.4176459611. The cubic root of 420431143 is about 749.1434030651.

Adding to 420431143 its reverse (341134024), we get a palindrome (761565167).

The spelling of 420431143 in words is "four hundred twenty million, four hundred thirty-one thousand, one hundred forty-three".