21113024003 has 2 divisors, whose sum is σ = 21113024004. Its totient is φ = 21113024002.

The previous prime is 21113023999. The next prime is 21113024033. The reversal of 21113024003 is 30042031112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21113024003 - 2² = 21113023999 is a prime.

It is not a weakly prime, because it can be changed into another prime (21113024033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556512001 + 10556512002.

It is an arithmetic number, because the mean of its divisors is an integer number (10556512002).

Almost surely, 2^21113024003 is an apocalyptic number.

21113024003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113024003 is an equidigital number, since it uses as much as digits as its factorization.

21113024003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21113024003 its reverse (30042031112), we get a palindrome (51155055115).

The spelling of 21113024003 in words is "twenty-one billion, one hundred thirteen million, twenty-four thousand, three".