21311430114 has 64 divisors (see below), whose sum is σ = 47934432000. Its totient is φ = 6267393792.

The previous prime is 21311430113. The next prime is 21311430143. The reversal of 21311430114 is 41103411312.

It is a super-3 number, since 3×21311430114³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21311430113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2775072 + ... + 2782740.

It is an arithmetic number, because the mean of its divisors is an integer number (748975500).

Almost surely, 2^21311430114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21311430114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23967216000).

21311430114 is an abundant number, since it is smaller than the sum of its proper divisors (26623001886).

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

21311430114 is a wasteful number, since it uses less digits than its factorization.

21311430114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21311430114 its reverse (41103411312), we get a palindrome (62414841426).

The spelling of 21311430114 in words is "twenty-one billion, three hundred eleven million, four hundred thirty thousand, one hundred fourteen".