21113002313 has 8 divisors (see below), whose sum is σ = 22791350400. Its totient is φ = 19442407248.

The previous prime is 21113002307. The next prime is 21113002349. The reversal of 21113002313 is 31320031112.

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 21113002313 - 2¹² = 21112998217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21113002291 and 21113002300.

It is not an unprimeable number, because it can be changed into a prime (21113002613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932593 + ... + 1943486.

It is an arithmetic number, because the mean of its divisors is an integer number (2848918800).

Almost surely, 2^21113002313 is an apocalyptic number.

It is an amenable number.

21113002313 is a deficient number, since it is larger than the sum of its proper divisors (1678348087).

21113002313 is a wasteful number, since it uses less digits than its factorization.

21113002313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876511.

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

Adding to 21113002313 its reverse (31320031112), we get a palindrome (52433033425).

The spelling of 21113002313 in words is "twenty-one billion, one hundred thirteen million, two thousand, three hundred thirteen".