21313002286 has 16 divisors (see below), whose sum is σ = 32147136000. Its totient is φ = 10597347288.

The previous prime is 21313002241. The next prime is 21313002287. The reversal of 21313002286 is 68220031312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313002287) 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, 798391 + ... + 824653.

It is an arithmetic number, because the mean of its divisors is an integer number (2009196000).

Almost surely, 2^21313002286 is an apocalyptic number.

21313002286 is a deficient number, since it is larger than the sum of its proper divisors (10834133714).

21313002286 is a wasteful number, since it uses less digits than its factorization.

21313002286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28503.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 21313002286 its reverse (68220031312), we get a palindrome (89533033598).

The spelling of 21313002286 in words is "twenty-one billion, three hundred thirteen million, two thousand, two hundred eighty-six".