21002214103 has 8 divisors (see below), whose sum is σ = 23948226288. Its totient is φ = 18246267264.

The previous prime is 21002214061. The next prime is 21002214113. The reversal of 21002214103 is 30141220012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21002214103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002214113) 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, 47516101 + ... + 47516542.

It is an arithmetic number, because the mean of its divisors is an integer number (2993528286).

Almost surely, 2^21002214103 is an apocalyptic number.

21002214103 is a deficient number, since it is larger than the sum of its proper divisors (2946012185).

21002214103 is a wasteful number, since it uses less digits than its factorization.

21002214103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95032673.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21002214103 its reverse (30141220012), we get a palindrome (51143434115).

The spelling of 21002214103 in words is "twenty-one billion, two million, two hundred fourteen thousand, one hundred three".