21133311110 has 8 divisors (see below), whose sum is σ = 38039960016. Its totient is φ = 8453324440.

The previous prime is 21133311079. The next prime is 21133311151. The reversal of 21133311110 is 1111333112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056665546 + ... + 1056665565.

It is an arithmetic number, because the mean of its divisors is an integer number (4754995002).

Almost surely, 2^21133311110 is an apocalyptic number.

21133311110 is a deficient number, since it is larger than the sum of its proper divisors (16906648906).

21133311110 is a wasteful number, since it uses less digits than its factorization.

21133311110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113331118.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 21133311110 its reverse (1111333112), we get a palindrome (22244644222).

The spelling of 21133311110 in words is "twenty-one billion, one hundred thirty-three million, three hundred eleven thousand, one hundred ten".