21330014430 has 32 divisors (see below), whose sum is σ = 51220778400. Its totient is φ = 5684810112.

The previous prime is 21330014417. The next prime is 21330014483. The reversal of 21330014430 is 3441003312.

It is a junction number, because it is equal to n+sod(n) for n = 21330014397 and 21330014406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145045 + ... + 252384.

It is an arithmetic number, because the mean of its divisors is an integer number (1600649325).

Almost surely, 2^21330014430 is an apocalyptic number.

21330014430 is an abundant number, since it is smaller than the sum of its proper divisors (29890763970).

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

21330014430 is a wasteful number, since it uses less digits than its factorization.

21330014430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399228.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21330014430 its reverse (3441003312), we get a palindrome (24771017742).

The spelling of 21330014430 in words is "twenty-one billion, three hundred thirty million, fourteen thousand, four hundred thirty".