21113431114 has 8 divisors (see below), whose sum is σ = 31701915108. Its totient is φ = 10546126080.

The previous prime is 21113431111. The next prime is 21113431139. The reversal of 21113431114 is 41113431112.

It can be written as a sum of positive squares in 2 ways, for example, as 20610909225 + 502521889 = 143565^2 + 22417^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21113431111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5292247 + ... + 5296234.

Almost surely, 2^21113431114 is an apocalyptic number.

21113431114 is a deficient number, since it is larger than the sum of its proper divisors (10588483994).

21113431114 is a wasteful number, since it uses less digits than its factorization.

21113431114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589480.

The product of its digits is 288, while the sum is 22.

Adding to 21113431114 its reverse (41113431112), we get a palindrome (62226862226).

The spelling of 21113431114 in words is "twenty-one billion, one hundred thirteen million, four hundred thirty-one thousand, one hundred fourteen".