21003311221113 has 32 divisors (see below), whose sum is σ = 31143478689792. Its totient is φ = 12503346004800.

The previous prime is 21003311221093. The next prime is 21003311221133. The reversal of 21003311221113 is 31112211330012.

It is an interprime number because it is at equal distance from previous prime (21003311221093) and next prime (21003311221133).

It is not a de Polignac number, because 21003311221113 - 2¹² = 21003311217017 is a prime.

It is a super-2 number, since 2×21003311221113² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21003311221113.

It is not an unprimeable number, because it can be changed into a prime (21003311221133) 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, 219945 + ... + 6484982.

It is an arithmetic number, because the mean of its divisors is an integer number (973233709056).

Almost surely, 2^{21003311221113} is an apocalyptic number.

It is an amenable number.

21003311221113 is a deficient number, since it is larger than the sum of its proper divisors (10140167468679).

21003311221113 is a wasteful number, since it uses less digits than its factorization.

21003311221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6707565.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21003311221113 its reverse (31112211330012), we get a palindrome (52115522551125).

The spelling of 21003311221113 in words is "twenty-one trillion, three billion, three hundred eleven million, two hundred twenty-one thousand, one hundred thirteen".