420213233242 has 32 divisors (see below), whose sum is σ = 689459284800. Its totient is φ = 190496188800.

The previous prime is 420213233233. The next prime is 420213233249. The reversal of 420213233242 is 242332312024.

It is a super-2 number, since 2×420213233242² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420213233242.

It is not an unprimeable number, because it can be changed into a prime (420213233249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14167684 + ... + 14197312.

It is an arithmetic number, because the mean of its divisors is an integer number (21545602650).

Almost surely, 2^420213233242 is an apocalyptic number.

420213233242 is a deficient number, since it is larger than the sum of its proper divisors (269246051558).

420213233242 is a wasteful number, since it uses less digits than its factorization.

420213233242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31342.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 420213233242 its reverse (242332312024), we get a palindrome (662545545266).

The spelling of 420213233242 in words is "four hundred twenty billion, two hundred thirteen million, two hundred thirty-three thousand, two hundred forty-two".