21331313210101 has 8 divisors (see below), whose sum is σ = 21346393711104. Its totient is φ = 21316237425120.

The previous prime is 21331313210057. The next prime is 21331313210173. The reversal of 21331313210101 is 10101231313312.

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 21331313210101 - 2¹⁷ = 21331313079029 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 (21331313213101) 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, 7895166 + ... + 10246768.

It is an arithmetic number, because the mean of its divisors is an integer number (2668299213888).

Almost surely, 2^{21331313210101} is an apocalyptic number.

It is an amenable number.

21331313210101 is a deficient number, since it is larger than the sum of its proper divisors (15080501003).

21331313210101 is a wasteful number, since it uses less digits than its factorization.

21331313210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358011.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21331313210101 its reverse (10101231313312), we get a palindrome (31432544523413).

The spelling of 21331313210101 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred thirteen million, two hundred ten thousand, one hundred one".