21030113033 has 8 divisors (see below), whose sum is σ = 21932305920. Its totient is φ = 20141907840.

The previous prime is 21030113029. The next prime is 21030113057. The reversal of 21030113033 is 33031103012.

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 21030113033 - 2² = 21030113029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21030115033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3493853 + ... + 3499866.

It is an arithmetic number, because the mean of its divisors is an integer number (2741538240).

Almost surely, 2^21030113033 is an apocalyptic number.

It is an amenable number.

21030113033 is a deficient number, since it is larger than the sum of its proper divisors (902192887).

21030113033 is an equidigital number, since it uses as much as digits as its factorization.

21030113033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993847.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21030113033 its reverse (33031103012), we get a palindrome (54061216045).

The spelling of 21030113033 in words is "twenty-one billion, thirty million, one hundred thirteen thousand, thirty-three".