420143212 has 12 divisors (see below), whose sum is σ = 735689416. Its totient is φ = 209946240.

The previous prime is 420143203. The next prime is 420143233. The reversal of 420143212 is 212341024.

It is a self number, because there is not a number n which added to its sum of digits gives 420143212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23589 + ... + 37372.

Almost surely, 2^420143212 is an apocalyptic number.

It is an amenable number.

420143212 is a deficient number, since it is larger than the sum of its proper divisors (315546204).

420143212 is a wasteful number, since it uses less digits than its factorization.

420143212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62688 (or 62686 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420143212 is about 20497.3952491530. The cubic root of 420143212 is about 748.9723478104.

Adding to 420143212 its reverse (212341024), we get a palindrome (632484236).

The spelling of 420143212 in words is "four hundred twenty million, one hundred forty-three thousand, two hundred twelve".