21113013114 has 48 divisors (see below), whose sum is σ = 46789869672. Its totient is φ = 6877937664.

The previous prime is 21113013101. The next prime is 21113013127. The reversal of 21113013114 is 41131031112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21113013101) and next prime (21113013127).

It can be written as a sum of positive squares in 4 ways, for example, as 18787362489 + 2325650625 = 137067^2 + 48225^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202122 + ... + 288234.

Almost surely, 2^21113013114 is an apocalyptic number.

21113013114 is an abundant number, since it is smaller than the sum of its proper divisors (25676856558).

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

21113013114 is a wasteful number, since it uses less digits than its factorization.

21113013114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86431 (or 86428 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21113013114 its reverse (41131031112), we get a palindrome (62244044226).

The spelling of 21113013114 in words is "twenty-one billion, one hundred thirteen million, thirteen thousand, one hundred fourteen".