21233111114 has 16 divisors (see below), whose sum is σ = 32514440040. Its totient is φ = 10395752640.

The previous prime is 21233111093. The next prime is 21233111147. The reversal of 21233111114 is 41111133212.

It can be written as a sum of positive squares in 4 ways, for example, as 20416123225 + 816987889 = 142885^2 + 28583^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142817 + ... + 250724.

Almost surely, 2^21233111114 is an apocalyptic number.

21233111114 is a deficient number, since it is larger than the sum of its proper divisors (11281328926).

21233111114 is a wasteful number, since it uses less digits than its factorization.

21233111114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394105.

The product of its digits is 144, while the sum is 20.

Adding to 21233111114 its reverse (41111133212), we get a palindrome (62344244326).

The spelling of 21233111114 in words is "twenty-one billion, two hundred thirty-three million, one hundred eleven thousand, one hundred fourteen".