434420111021 has 8 divisors (see below), whose sum is σ = 469091302680. Its totient is φ = 399928099392.

The previous prime is 434420110991. The next prime is 434420111029. The reversal of 434420111021 is 120111024434.

It can be written as a sum of positive squares in 4 ways, for example, as 61906416100 + 372513694921 = 248810^2 + 610339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 434420111021 - 2²⁶ = 434353002157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434420111029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44789966 + ... + 44799663.

It is an arithmetic number, because the mean of its divisors is an integer number (58636412835).

Almost surely, 2^434420111021 is an apocalyptic number.

It is an amenable number.

434420111021 is a deficient number, since it is larger than the sum of its proper divisors (34671191659).

434420111021 is a wasteful number, since it uses less digits than its factorization.

434420111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89590015.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 434420111021 its reverse (120111024434), we get a palindrome (554531135455).

The spelling of 434420111021 in words is "four hundred thirty-four billion, four hundred twenty million, one hundred eleven thousand, twenty-one".