21210003133111 has 16 divisors (see below), whose sum is σ = 22987435746240. Its totient is φ = 19569315548640.

The previous prime is 21210003133103. The next prime is 21210003133169. The reversal of 21210003133111 is 11133130001212.

It is not a de Polignac number, because 21210003133111 - 2³ = 21210003133103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210003143111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2449206 + ... + 6958348.

It is an arithmetic number, because the mean of its divisors is an integer number (1436714734140).

Almost surely, 2^{21210003133111} is an apocalyptic number.

21210003133111 is a deficient number, since it is larger than the sum of its proper divisors (1777432613129).

21210003133111 is an equidigital number, since it uses as much as digits as its factorization.

21210003133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511323 (or 4511297 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21210003133111 its reverse (11133130001212), we get a palindrome (32343133134323).

The spelling of 21210003133111 in words is "twenty-one trillion, two hundred ten billion, three million, one hundred thirty-three thousand, one hundred eleven".