21303143430010 has 32 divisors (see below), whose sum is σ = 41303459271312. Its totient is φ = 7864226496000.

The previous prime is 21303143429987. The next prime is 21303143430013. The reversal of 21303143430010 is 1003434130312.

It can be written as a sum of positive squares in 8 ways, for example, as 18168335079489 + 3134808350521 = 4262433^2 + 1770539^2 .

It is not an unprimeable number, because it can be changed into a prime (21303143430013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15478491 + ... + 16798510.

Almost surely, 2^{21303143430010} is an apocalyptic number.

21303143430010 is a deficient number, since it is larger than the sum of its proper divisors (20000315841302).

21303143430010 is a wasteful number, since it uses less digits than its factorization.

21303143430010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32282098.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21303143430010 its reverse (1003434130312), we get a palindrome (22306577560322).

The spelling of 21303143430010 in words is "twenty-one trillion, three hundred three billion, one hundred forty-three million, four hundred thirty thousand, ten".