421134406411 has 4 divisors (see below), whose sum is σ = 421144390800. Its totient is φ = 421124422024.

The previous prime is 421134406379. The next prime is 421134406447. The reversal of 421134406411 is 114604431124.

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 421134406411 - 2⁵ = 421134406379 is a prime.

It is a super-3 number, since 3×421134406411³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421134400411) 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, 4928656 + ... + 5013373.

It is an arithmetic number, because the mean of its divisors is an integer number (105286097700).

Almost surely, 2^421134406411 is an apocalyptic number.

421134406411 is a deficient number, since it is larger than the sum of its proper divisors (9984389).

421134406411 is an equidigital number, since it uses as much as digits as its factorization.

421134406411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984388.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 421134406411 its reverse (114604431124), we get a palindrome (535738837535).

The spelling of 421134406411 in words is "four hundred twenty-one billion, one hundred thirty-four million, four hundred six thousand, four hundred eleven".