21050033104 has 20 divisors (see below), whose sum is σ = 40879080000. Its totient is φ = 10500593120.

The previous prime is 21050033099. The next prime is 21050033107. The reversal of 21050033104 is 40133005012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21050033107) 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, 1519354 + ... + 1533145.

It is an arithmetic number, because the mean of its divisors is an integer number (2043954000).

Almost surely, 2^21050033104 is an apocalyptic number.

It is an amenable number.

21050033104 is a deficient number, since it is larger than the sum of its proper divisors (19829046896).

21050033104 is a wasteful number, since it uses less digits than its factorization.

21050033104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052938 (or 3052932 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 21050033104 its reverse (40133005012), we get a palindrome (61183038116).

The spelling of 21050033104 in words is "twenty-one billion, fifty million, thirty-three thousand, one hundred four".