420111144342142 has 16 divisors (see below), whose sum is σ = 693761522770800. Its totient is φ = 189207688026240.

The previous prime is 420111144342139. The next prime is 420111144342173. The reversal of 420111144342142 is 241243441111024.

It is a junction number, because it is equal to n+sod(n) for n = 420111144342098 and 420111144342107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87596149467 + ... + 87596154262.

It is an arithmetic number, because the mean of its divisors is an integer number (43360095173175).

Almost surely, 2^{420111144342142} is an apocalyptic number.

420111144342142 is a deficient number, since it is larger than the sum of its proper divisors (273650378428658).

420111144342142 is a wasteful number, since it uses less digits than its factorization.

420111144342142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175192303851.

The product of its (nonzero) digits is 24576, while the sum is 34.

Adding to 420111144342142 its reverse (241243441111024), we get a palindrome (661354585453166).

The spelling of 420111144342142 in words is "four hundred twenty trillion, one hundred eleven billion, one hundred forty-four million, three hundred forty-two thousand, one hundred forty-two".