21113213003 has 8 divisors (see below), whose sum is σ = 22254523200. Its totient is φ = 19974911688.

The previous prime is 21113212961. The next prime is 21113213021. The reversal of 21113213003 is 30031231112.

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 21113213003 - 2¹⁴ = 21113196619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113213503) 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, 737801 + ... + 765882.

It is an arithmetic number, because the mean of its divisors is an integer number (2781815400).

Almost surely, 2^21113213003 is an apocalyptic number.

21113213003 is a deficient number, since it is larger than the sum of its proper divisors (1141310197).

21113213003 is a wasteful number, since it uses less digits than its factorization.

21113213003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504441.

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

Adding to 21113213003 its reverse (30031231112), we get a palindrome (51144444115).

The spelling of 21113213003 in words is "twenty-one billion, one hundred thirteen million, two hundred thirteen thousand, three".