21003000332213 has 32 divisors (see below), whose sum is σ = 21639406424064. Its totient is φ = 20373943286592.

The previous prime is 21003000332183. The next prime is 21003000332231. The reversal of 21003000332213 is 31223300030012.

It is a cyclic number.

It is not a de Polignac number, because 21003000332213 - 2¹² = 21003000328117 is a prime.

It is a super-2 number, since 2×21003000332213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003000332263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5459577056 + ... + 5459580902.

It is an arithmetic number, because the mean of its divisors is an integer number (676231450752).

Almost surely, 2^{21003000332213} is an apocalyptic number.

It is an amenable number.

21003000332213 is a deficient number, since it is larger than the sum of its proper divisors (636406091851).

21003000332213 is a wasteful number, since it uses less digits than its factorization.

21003000332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21003000332213 its reverse (31223300030012), we get a palindrome (52226300362225).

The spelling of 21003000332213 in words is "twenty-one trillion, three billion, three hundred thirty-two thousand, two hundred thirteen".