21312033000011 has 64 divisors (see below), whose sum is σ = 24488666496000. Its totient is φ = 18385010380800.

The previous prime is 21312032999987. The next prime is 21312033000019. The reversal of 21312033000011 is 11000033021312.

It is a cyclic number.

It is not a de Polignac number, because 21312033000011 - 2⁶ = 21312032999947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21312033000019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6022047680 + ... + 6022051218.

It is an arithmetic number, because the mean of its divisors is an integer number (382635414000).

Almost surely, 2^{21312033000011} is an apocalyptic number.

21312033000011 is a deficient number, since it is larger than the sum of its proper divisors (3176633495989).

21312033000011 is a wasteful number, since it uses less digits than its factorization.

21312033000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21312033000011 its reverse (11000033021312), we get a palindrome (32312066021323).

The spelling of 21312033000011 in words is "twenty-one trillion, three hundred twelve billion, thirty-three million, eleven", and thus it is an aban number.