420211120111 has 4 divisors (see below), whose sum is σ = 444929421312. Its totient is φ = 395492818912.

The previous prime is 420211120097. The next prime is 420211120141. The reversal of 420211120111 is 111021112024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420211120111 - 2⁷ = 420211119983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420211120141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12359150575 + ... + 12359150608.

It is an arithmetic number, because the mean of its divisors is an integer number (111232355328).

Almost surely, 2^420211120111 is an apocalyptic number.

420211120111 is a deficient number, since it is larger than the sum of its proper divisors (24718301201).

420211120111 is a wasteful number, since it uses less digits than its factorization.

420211120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24718301200.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 420211120111 its reverse (111021112024), we get a palindrome (531232232135).

The spelling of 420211120111 in words is "four hundred twenty billion, two hundred eleven million, one hundred twenty thousand, one hundred eleven".