21103011330210 has 32 divisors (see below), whose sum is σ = 56274696881280. Its totient is φ = 5627469687984.

The previous prime is 21103011330199. The next prime is 21103011330251. The reversal of 21103011330210 is 1203311030112.

21103011330210 is a `hidden beast` number, since 2 + 1 + 10 + 301 + 1 + 330 + 21 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39079650342 + ... + 39079650881.

It is an arithmetic number, because the mean of its divisors is an integer number (1758584277540).

Almost surely, 2^{21103011330210} is an apocalyptic number.

21103011330210 is an abundant number, since it is smaller than the sum of its proper divisors (35171685551070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21103011330210 is a wasteful number, since it uses less digits than its factorization.

21103011330210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78159301239 (or 78159301233 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21103011330210 its reverse (1203311030112), we get a palindrome (22306322360322).

The spelling of 21103011330210 in words is "twenty-one trillion, one hundred three billion, eleven million, three hundred thirty thousand, two hundred ten".