21113032430 has 16 divisors (see below), whose sum is σ = 43432524000. Its totient is φ = 7238753952.

The previous prime is 21113032403. The next prime is 21113032441. The reversal of 21113032430 is 3423031112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150807305 + ... + 150807444.

It is an arithmetic number, because the mean of its divisors is an integer number (2714532750).

Almost surely, 2^21113032430 is an apocalyptic number.

21113032430 is an abundant number, since it is smaller than the sum of its proper divisors (22319491570).

21113032430 is a wasteful number, since it uses less digits than its factorization.

21113032430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301614763.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21113032430 its reverse (3423031112), we get a palindrome (24536063542).

The spelling of 21113032430 in words is "twenty-one billion, one hundred thirteen million, thirty-two thousand, four hundred thirty".