21123313060033 has 4 divisors (see below), whose sum is σ = 21130806256560. Its totient is φ = 21115819863508.

The previous prime is 21123313060009. The next prime is 21123313060061. The reversal of 21123313060033 is 33006031332112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21123313060033 is a prime.

It is a super-2 number, since 2×21123313060033² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21123313059983 and 21123313060010.

It is not an unprimeable number, because it can be changed into a prime (21123313064033) 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 3 ways as a sum of consecutive naturals, for example, 3746594035 + ... + 3746599672.

It is an arithmetic number, because the mean of its divisors is an integer number (5282701564140).

Almost surely, 2^{21123313060033} is an apocalyptic number.

It is an amenable number.

21123313060033 is a deficient number, since it is larger than the sum of its proper divisors (7493196527).

21123313060033 is an equidigital number, since it uses as much as digits as its factorization.

21123313060033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493196526.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 21123313060033 its reverse (33006031332112), we get a palindrome (54129344392145).

The spelling of 21123313060033 in words is "twenty-one trillion, one hundred twenty-three billion, three hundred thirteen million, sixty thousand, thirty-three".