21024430030 has 16 divisors (see below), whose sum is σ = 37929408624. Its totient is φ = 8390786560.

The previous prime is 21024430013. The next prime is 21024430033. The reversal of 21024430030 is 3003442012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21024430033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368531 + ... + 2377390.

It is an arithmetic number, because the mean of its divisors is an integer number (2370588039).

Almost surely, 2^21024430030 is an apocalyptic number.

21024430030 is a deficient number, since it is larger than the sum of its proper divisors (16904978594).

21024430030 is a wasteful number, since it uses less digits than its factorization.

21024430030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746371.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21024430030 its reverse (3003442012), we get a palindrome (24027872042).

The spelling of 21024430030 in words is "twenty-one billion, twenty-four million, four hundred thirty thousand, thirty".