21113424213414 has 64 divisors (see below), whose sum is σ = 45931985971200. Its totient is φ = 6431428979712.

The previous prime is 21113424213407. The next prime is 21113424213521. The reversal of 21113424213414 is 41431242431112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068907 + ... + 6585545.

It is an arithmetic number, because the mean of its divisors is an integer number (717687280800).

Almost surely, 2^{21113424213414} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21113424213414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22965992985600).

21113424213414 is an abundant number, since it is smaller than the sum of its proper divisors (24818561757786).

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

21113424213414 is a wasteful number, since it uses less digits than its factorization.

21113424213414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517149.

The product of its digits is 18432, while the sum is 33.

Adding to 21113424213414 its reverse (41431242431112), we get a palindrome (62544666644526).

The spelling of 21113424213414 in words is "twenty-one trillion, one hundred thirteen billion, four hundred twenty-four million, two hundred thirteen thousand, four hundred fourteen".