21013200033 has 12 divisors (see below), whose sum is σ = 32591902320. Its totient is φ = 12007542792.

The previous prime is 21013200031. The next prime is 21013200049. The reversal of 21013200033 is 33000231012.

It is not a de Polignac number, because 21013200033 - 2¹ = 21013200031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21013199985 and 21013200021.

It is not an unprimeable number, because it can be changed into a prime (21013200031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71473323 + ... + 71473616.

It is an arithmetic number, because the mean of its divisors is an integer number (2715991860).

Almost surely, 2^21013200033 is an apocalyptic number.

It is an amenable number.

21013200033 is a deficient number, since it is larger than the sum of its proper divisors (11578702287).

21013200033 is a wasteful number, since it uses less digits than its factorization.

21013200033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142946956 (or 142946949 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21013200033 its reverse (33000231012), we get a palindrome (54013431045).

The spelling of 21013200033 in words is "twenty-one billion, thirteen million, two hundred thousand, thirty-three".