21313143230 has 8 divisors (see below), whose sum is σ = 38363657832. Its totient is φ = 8525257288.

The previous prime is 21313143211. The next prime is 21313143311. The reversal of 21313143230 is 3234131312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21313143196 and 21313143205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065657152 + ... + 1065657171.

It is an arithmetic number, because the mean of its divisors is an integer number (4795457229).

Almost surely, 2^21313143230 is an apocalyptic number.

21313143230 is a deficient number, since it is larger than the sum of its proper divisors (17050514602).

21313143230 is a wasteful number, since it uses less digits than its factorization.

21313143230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131314330.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21313143230 its reverse (3234131312), we get a palindrome (24547274542).

The spelling of 21313143230 in words is "twenty-one billion, three hundred thirteen million, one hundred forty-three thousand, two hundred thirty".