21302010033 has 4 divisors (see below), whose sum is σ = 28402680048. Its totient is φ = 14201340020.

The previous prime is 21302009969. The next prime is 21302010049. The reversal of 21302010033 is 33001020312.

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 not a de Polignac number, because 21302010033 - 2⁶ = 21302009969 is a prime.

It is a super-2 number, since 2×21302010033² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21302009994 and 21302010021.

It is not an unprimeable number, because it can be changed into a prime (21302010733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3550335003 + ... + 3550335008.

It is an arithmetic number, because the mean of its divisors is an integer number (7100670012).

Almost surely, 2^21302010033 is an apocalyptic number.

It is an amenable number.

21302010033 is a deficient number, since it is larger than the sum of its proper divisors (7100670015).

21302010033 is an equidigital number, since it uses as much as digits as its factorization.

21302010033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7100670014.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21302010033 its reverse (33001020312), we get a palindrome (54303030345).

The spelling of 21302010033 in words is "twenty-one billion, three hundred two million, ten thousand, thirty-three".