12213421313 has 2 divisors, whose sum is σ = 12213421314. Its totient is φ = 12213421312.

The previous prime is 12213421309. The next prime is 12213421321. The reversal of 12213421313 is 31312431221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10996248769 + 1217172544 = 104863^2 + 34888^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213421313 - 2² = 12213421309 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213121313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106710656 + 6106710657.

It is an arithmetic number, because the mean of its divisors is an integer number (6106710657).

Almost surely, 2^12213421313 is an apocalyptic number.

It is an amenable number.

12213421313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213421313 is an equidigital number, since it uses as much as digits as its factorization.

12213421313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

Adding to 12213421313 its reverse (31312431221), we get a palindrome (43525852534).

The spelling of 12213421313 in words is "twelve billion, two hundred thirteen million, four hundred twenty-one thousand, three hundred thirteen".