420213021242 has 16 divisors (see below), whose sum is σ = 723379265280. Its totient is φ = 179337773328.

The previous prime is 420213021167. The next prime is 420213021253. The reversal of 420213021242 is 242120312024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62789993 + ... + 62796684.

It is an arithmetic number, because the mean of its divisors is an integer number (45211204080).

Almost surely, 2^420213021242 is an apocalyptic number.

420213021242 is a deficient number, since it is larger than the sum of its proper divisors (303166244038).

420213021242 is a wasteful number, since it uses less digits than its factorization.

420213021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125586925.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 420213021242 its reverse (242120312024), we get a palindrome (662333333266).

The spelling of 420213021242 in words is "four hundred twenty billion, two hundred thirteen million, twenty-one thousand, two hundred forty-two".