21210033010003 has 8 divisors (see below), whose sum is σ = 22132284311808. Its totient is φ = 20287788037704.

The previous prime is 21210033009929. The next prime is 21210033010021. The reversal of 21210033010003 is 30001033001212.

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 21210033010003 - 2¹³ = 21210033001811 is a prime.

It is a super-3 number, since 3×21210033010003³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21210033010703) 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, 6048250 + ... + 8888272.

It is an arithmetic number, because the mean of its divisors is an integer number (2766535538976).

Almost surely, 2^{21210033010003} is an apocalyptic number.

21210033010003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21210033010003 is a deficient number, since it is larger than the sum of its proper divisors (922251301805).

21210033010003 is a wasteful number, since it uses less digits than its factorization.

21210033010003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164753.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21210033010003 its reverse (30001033001212), we get a palindrome (51211066011215).

The spelling of 21210033010003 in words is "twenty-one trillion, two hundred ten billion, thirty-three million, ten thousand, three".