21011313212033 has 8 divisors (see below), whose sum is σ = 22117463778720. Its totient is φ = 19905191843040.

The previous prime is 21011313212027. The next prime is 21011313212047. The reversal of 21011313212033 is 33021231311012.

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 21011313212033 - 2²² = 21011309017729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21011313212933) 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, 5814548 + ... + 8708133.

It is an arithmetic number, because the mean of its divisors is an integer number (2764682972340).

Almost surely, 2^{21011313212033} is an apocalyptic number.

It is an amenable number.

21011313212033 is a deficient number, since it is larger than the sum of its proper divisors (1106150566687).

21011313212033 is a wasteful number, since it uses less digits than its factorization.

21011313212033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14598847.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21011313212033 its reverse (33021231311012), we get a palindrome (54032544523045).

The spelling of 21011313212033 in words is "twenty-one trillion, eleven billion, three hundred thirteen million, two hundred twelve thousand, thirty-three".