420003311111 has 4 divisors (see below), whose sum is σ = 425319808800. Its totient is φ = 414686813424.

The previous prime is 420003311107. The next prime is 420003311207. The reversal of 420003311111 is 111113300024.

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 420003311111 - 2² = 420003311107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420003311111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420003361111) 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 3 ways as a sum of consecutive naturals, for example, 2658248726 + ... + 2658248883.

It is an arithmetic number, because the mean of its divisors is an integer number (106329952200).

Almost surely, 2^420003311111 is an apocalyptic number.

420003311111 is a deficient number, since it is larger than the sum of its proper divisors (5316497689).

420003311111 is an equidigital number, since it uses as much as digits as its factorization.

420003311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316497688.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 420003311111 its reverse (111113300024), we get a palindrome (531116611135).

The spelling of 420003311111 in words is "four hundred twenty billion, three million, three hundred eleven thousand, one hundred eleven".