21313230283 has 2 divisors, whose sum is σ = 21313230284. Its totient is φ = 21313230282.

The previous prime is 21313230277. The next prime is 21313230349. The reversal of 21313230283 is 38203231312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21313230283 - 2⁵ = 21313230251 is a prime.

It is not a weakly prime, because it can be changed into another prime (21313230683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656615141 + 10656615142.

It is an arithmetic number, because the mean of its divisors is an integer number (10656615142).

Almost surely, 2^21313230283 is an apocalyptic number.

21313230283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21313230283 is an equidigital number, since it uses as much as digits as its factorization.

21313230283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21313230283 its reverse (38203231312), we get a palindrome (59516461595).

The spelling of 21313230283 in words is "twenty-one billion, three hundred thirteen million, two hundred thirty thousand, two hundred eighty-three".