21113302303033 has 2 divisors, whose sum is σ = 21113302303034. Its totient is φ = 21113302303032.

The previous prime is 21113302303007. The next prime is 21113302303063. The reversal of 21113302303033 is 33030320331112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12993811624249 + 8119490678784 = 3604693^2 + 2849472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21113302303033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21113302302989 and 21113302303007.

It is not a weakly prime, because it can be changed into another prime (21113302303063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556651151516 + 10556651151517.

It is an arithmetic number, because the mean of its divisors is an integer number (10556651151517).

Almost surely, 2^{21113302303033} is an apocalyptic number.

It is an amenable number.

21113302303033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113302303033 is an equidigital number, since it uses as much as digits as its factorization.

21113302303033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21113302303033 its reverse (33030320331112), we get a palindrome (54143622634145).

The spelling of 21113302303033 in words is "twenty-one trillion, one hundred thirteen billion, three hundred two million, three hundred three thousand, thirty-three".