21114302430 has 192 divisors, whose sum is σ = 59851266048. Its totient is φ = 4733061120.

The previous prime is 21114302389. The next prime is 21114302449. The reversal of 21114302430 is 3420341112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21114302397 and 21114302406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3490989 + ... + 3497031.

It is an arithmetic number, because the mean of its divisors is an integer number (311725344).

Almost surely, 2^21114302430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21114302430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29925633024).

21114302430 is an abundant number, since it is smaller than the sum of its proper divisors (38736963618).

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

21114302430 is a wasteful number, since it uses less digits than its factorization.

21114302430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6114 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21114302430 its reverse (3420341112), we get a palindrome (24534643542).

The spelling of 21114302430 in words is "twenty-one billion, one hundred fourteen million, three hundred two thousand, four hundred thirty".