420233444111 has 4 divisors (see below), whose sum is σ = 452559093672. Its totient is φ = 387907794552.

The previous prime is 420233444089. The next prime is 420233444131. The reversal of 420233444111 is 111444332024.

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 420233444111 - 2⁶ = 420233444047 is a prime.

It is a super-2 number, since 2×420233444111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420233444131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16162824761 + ... + 16162824786.

It is an arithmetic number, because the mean of its divisors is an integer number (113139773418).

Almost surely, 2^420233444111 is an apocalyptic number.

420233444111 is a deficient number, since it is larger than the sum of its proper divisors (32325649561).

420233444111 is a wasteful number, since it uses less digits than its factorization.

420233444111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32325649560.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 420233444111 its reverse (111444332024), we get a palindrome (531677776135).

The spelling of 420233444111 in words is "four hundred twenty billion, two hundred thirty-three million, four hundred forty-four thousand, one hundred eleven".