21100322310030 has 64 divisors (see below), whose sum is σ = 56389581864000. Its totient is φ = 5614547045760.

The previous prime is 21100322310029. The next prime is 21100322310047. The reversal of 21100322310030 is 3001322300112.

21100322310030 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 0 + 322 + 310 + 0 + 30 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 21100322309985 and 21100322310012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84636205 + ... + 84885144.

It is an arithmetic number, because the mean of its divisors is an integer number (881087216625).

Almost surely, 2^{21100322310030} is an apocalyptic number.

21100322310030 is an abundant number, since it is smaller than the sum of its proper divisors (35289259553970).

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

21100322310030 is a wasteful number, since it uses less digits than its factorization.

21100322310030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169521826 (or 169521820 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21100322310030 its reverse (3001322300112), we get a palindrome (24101644610142).

The spelling of 21100322310030 in words is "twenty-one trillion, one hundred billion, three hundred twenty-two million, three hundred ten thousand, thirty".