420244212331 has 8 divisors (see below), whose sum is σ = 430031289600. Its totient is φ = 410457769512.

The previous prime is 420244212329. The next prime is 420244212343. The reversal of 420244212331 is 133212442024.

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 420244212331 - 2¹ = 420244212329 is a prime.

It is a super-2 number, since 2×420244212331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420244212331.

It is not an unprimeable number, because it can be changed into a prime (420244212361) 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, 1345770 + ... + 1628368.

It is an arithmetic number, because the mean of its divisors is an integer number (53753911200).

Almost surely, 2^420244212331 is an apocalyptic number.

420244212331 is a deficient number, since it is larger than the sum of its proper divisors (9787077269).

420244212331 is a wasteful number, since it uses less digits than its factorization.

420244212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317225.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 420244212331 its reverse (133212442024), we get a palindrome (553456654355).

The spelling of 420244212331 in words is "four hundred twenty billion, two hundred forty-four million, two hundred twelve thousand, three hundred thirty-one".