21101103133002 has 24 divisors (see below), whose sum is σ = 46401430772736. Its totient is φ = 6928720431336.

The previous prime is 21101103132979. The next prime is 21101103133021. The reversal of 21101103133002 is 20033130110112.

21101103133002 is a `hidden beast` number, since 211 + 0 + 110 + 313 + 30 + 0 + 2 = 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 11 ways as a sum of consecutive naturals, for example, 8748383178 + ... + 8748385589.

It is an arithmetic number, because the mean of its divisors is an integer number (1933392948864).

Almost surely, 2^{21101103133002} is an apocalyptic number.

21101103133002 is an abundant number, since it is smaller than the sum of its proper divisors (25300327639734).

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

21101103133002 is a wasteful number, since it uses less digits than its factorization.

21101103133002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496768842 (or 17496768839 counting only the distinct ones).

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

Adding to 21101103133002 its reverse (20033130110112), we get a palindrome (41134233243114).

The spelling of 21101103133002 in words is "twenty-one trillion, one hundred one billion, one hundred three million, one hundred thirty-three thousand, two".