420111111100 has 36 divisors (see below), whose sum is σ = 965267062704. Its totient is φ = 158159476480.

The previous prime is 420111111047. The next prime is 420111111143. The reversal of 420111111100 is 1111111024.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 123560392 + ... + 123563791.

It is an arithmetic number, because the mean of its divisors is an integer number (26812973964).

Almost surely, 2^420111111100 is an apocalyptic number.

It is an amenable number.

420111111100 is an abundant number, since it is smaller than the sum of its proper divisors (545155951604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420111111100 is a wasteful number, since it uses less digits than its factorization.

420111111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247124214 (or 247124207 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 420111111100 its reverse (1111111024), we get a palindrome (421222222124).

The spelling of 420111111100 in words is "four hundred twenty billion, one hundred eleven million, one hundred eleven thousand, one hundred".