21434042340001 has 8 divisors (see below), whose sum is σ = 22580478166400. Its totient is φ = 20289439347120.

The previous prime is 21434042339959. The next prime is 21434042340047. The reversal of 21434042340001 is 10004324043412.

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 21434042340001 - 2²⁵ = 21434008785569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21432042340001) 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, 458184366 + ... + 458231143.

It is an arithmetic number, because the mean of its divisors is an integer number (2822559770800).

Almost surely, 2^{21434042340001} is an apocalyptic number.

It is an amenable number.

21434042340001 is a deficient number, since it is larger than the sum of its proper divisors (1146435826399).

21434042340001 is a wasteful number, since it uses less digits than its factorization.

21434042340001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916416759.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21434042340001 its reverse (10004324043412), we get a palindrome (31438366383413).

The spelling of 21434042340001 in words is "twenty-one trillion, four hundred thirty-four billion, forty-two million, three hundred forty thousand, one".