21341344331101 has 4 divisors (see below), whose sum is σ = 21350875974400. Its totient is φ = 21331812687804.

The previous prime is 21341344331039. The next prime is 21341344331141. The reversal of 21341344331101 is 10113344314312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21341344331101 - 2⁷ = 21341344330973 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 (21341344331141) 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, 4765818291 + ... + 4765822768.

It is an arithmetic number, because the mean of its divisors is an integer number (5337718993600).

Almost surely, 2^{21341344331101} is an apocalyptic number.

It is an amenable number.

21341344331101 is a deficient number, since it is larger than the sum of its proper divisors (9531643299).

21341344331101 is an equidigital number, since it uses as much as digits as its factorization.

21341344331101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531643298.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 21341344331101 its reverse (10113344314312), we get a palindrome (31454688645413).

The spelling of 21341344331101 in words is "twenty-one trillion, three hundred forty-one billion, three hundred forty-four million, three hundred thirty-one thousand, one hundred one".