21214041334631 has 8 divisors (see below), whose sum is σ = 21283689375360. Its totient is φ = 21144405215232.

The previous prime is 21214041334583. The next prime is 21214041334637. The reversal of 21214041334631 is 13643314041212.

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 21214041334631 - 2¹⁰ = 21214041333607 is a prime.

It is a super-2 number, since 2×21214041334631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21214041334591 and 21214041334600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214041334637) 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, 591530 + ... + 6540488.

It is an arithmetic number, because the mean of its divisors is an integer number (2660461171920).

Almost surely, 2^{21214041334631} is an apocalyptic number.

21214041334631 is a deficient number, since it is larger than the sum of its proper divisors (69648040729).

21214041334631 is a wasteful number, since it uses less digits than its factorization.

21214041334631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960665.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 21214041334631 its reverse (13643314041212), we get a palindrome (34857355375843).

The spelling of 21214041334631 in words is "twenty-one trillion, two hundred fourteen billion, forty-one million, three hundred thirty-four thousand, six hundred thirty-one".