212303344013 has 2 divisors, whose sum is σ = 212303344014. Its totient is φ = 212303344012.

The previous prime is 212303343997. The next prime is 212303344133. The reversal of 212303344013 is 310443303212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114620842249 + 97682501764 = 338557^2 + 312542^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303344013 - 2⁴ = 212303343997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212303341013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151672006 + 106151672007.

It is an arithmetic number, because the mean of its divisors is an integer number (106151672007).

Almost surely, 2^212303344013 is an apocalyptic number.

It is an amenable number.

212303344013 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303344013 is an equidigital number, since it uses as much as digits as its factorization.

212303344013 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 26.

Adding to 212303344013 its reverse (310443303212), we get a palindrome (522746647225).

The spelling of 212303344013 in words is "two hundred twelve billion, three hundred three million, three hundred forty-four thousand, thirteen".