420200144044142 has 48 divisors (see below), whose sum is σ = 800358619137840. Its totient is φ = 163612592035200.

The previous prime is 420200144044097. The next prime is 420200144044169. The reversal of 420200144044142 is 241440441002024.

It is a super-2 number, since 2×420200144044142² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420200144044099 and 420200144044108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119395409 + ... + 122864412.

It is an arithmetic number, because the mean of its divisors is an integer number (16674137898705).

Almost surely, 2^{420200144044142} is an apocalyptic number.

420200144044142 is a deficient number, since it is larger than the sum of its proper divisors (380158475093698).

420200144044142 is a wasteful number, since it uses less digits than its factorization.

420200144044142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242261457 (or 242261450 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 420200144044142 its reverse (241440441002024), we get a palindrome (661640585046166).

The spelling of 420200144044142 in words is "four hundred twenty trillion, two hundred billion, one hundred forty-four million, forty-four thousand, one hundred forty-two".