420430221423011 has 4 divisors (see below), whose sum is σ = 420430500692400. Its totient is φ = 420429942153624.

The previous prime is 420430221422969. The next prime is 420430221423013. The reversal of 420430221423011 is 110324122034024.

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 420430221423011 - 2⁶ = 420430221422947 is a prime.

It is a super-2 number, since 2×420430221423011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420430221423013) 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, 137364191 + ... + 140391528.

It is an arithmetic number, because the mean of its divisors is an integer number (105107625173100).

Almost surely, 2^{420430221423011} is an apocalyptic number.

420430221423011 is a deficient number, since it is larger than the sum of its proper divisors (279269389).

420430221423011 is a wasteful number, since it uses less digits than its factorization.

420430221423011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279269388.

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

Adding to 420430221423011 its reverse (110324122034024), we get a palindrome (530754343457035).

The spelling of 420430221423011 in words is "four hundred twenty trillion, four hundred thirty billion, two hundred twenty-one million, four hundred twenty-three thousand, eleven".