21303314231230 has 16 divisors (see below), whose sum is σ = 39281233071024. Its totient is φ = 8313488480320.

The previous prime is 21303314231183. The next prime is 21303314231237. The reversal of 21303314231230 is 3213241330312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303314231237) 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, 25979651092 + ... + 25979651911.

It is an arithmetic number, because the mean of its divisors is an integer number (2455077066939).

Almost surely, 2^{21303314231230} is an apocalyptic number.

21303314231230 is a deficient number, since it is larger than the sum of its proper divisors (17977918839794).

21303314231230 is a wasteful number, since it uses less digits than its factorization.

21303314231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51959303051.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21303314231230 its reverse (3213241330312), we get a palindrome (24516555561542).

The spelling of 21303314231230 in words is "twenty-one trillion, three hundred three billion, three hundred fourteen million, two hundred thirty-one thousand, two hundred thirty".