21133102013 has 8 divisors (see below), whose sum is σ = 22274313600. Its totient is φ = 19994784768.

The previous prime is 21133102009. The next prime is 21133102037. The reversal of 21133102013 is 31020133112.

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 21133102013 - 2² = 21133102009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21133101982 and 21133102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133102063) 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, 708581 + ... + 737802.

It is an arithmetic number, because the mean of its divisors is an integer number (2784289200).

Almost surely, 2^21133102013 is an apocalyptic number.

It is an amenable number.

21133102013 is a deficient number, since it is larger than the sum of its proper divisors (1141211587).

21133102013 is a wasteful number, since it uses less digits than its factorization.

21133102013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447171.

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

Adding to 21133102013 its reverse (31020133112), we get a palindrome (52153235125).

The spelling of 21133102013 in words is "twenty-one billion, one hundred thirty-three million, one hundred two thousand, thirteen".