420334444511 has 4 divisors (see below), whose sum is σ = 424415361552. Its totient is φ = 416253527472.

The previous prime is 420334444507. The next prime is 420334444531. The reversal of 420334444511 is 115444433024.

It is a happy number.

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 420334444511 - 2² = 420334444507 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 (420334444531) 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, 2040458366 + ... + 2040458571.

It is an arithmetic number, because the mean of its divisors is an integer number (106103840388).

Almost surely, 2^420334444511 is an apocalyptic number.

420334444511 is a deficient number, since it is larger than the sum of its proper divisors (4080917041).

420334444511 is a wasteful number, since it uses less digits than its factorization.

420334444511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080917040.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 420334444511 its reverse (115444433024), we get a palindrome (535778877535).

The spelling of 420334444511 in words is "four hundred twenty billion, three hundred thirty-four million, four hundred forty-four thousand, five hundred eleven".