20144223313 has 2 divisors, whose sum is σ = 20144223314. Its totient is φ = 20144223312.

The previous prime is 20144223293. The next prime is 20144223391. The reversal of 20144223313 is 31332244102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19986042384 + 158180929 = 141372^2 + 12577^2 .

It is a cyclic number.

It is not a de Polignac number, because 20144223313 - 2⁹ = 20144222801 is a prime.

It is not a weakly prime, because it can be changed into another prime (20144223013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072111656 + 10072111657.

It is an arithmetic number, because the mean of its divisors is an integer number (10072111657).

Almost surely, 2^20144223313 is an apocalyptic number.

It is an amenable number.

20144223313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20144223313 is an equidigital number, since it uses as much as digits as its factorization.

20144223313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20144223313 its reverse (31332244102), we get a palindrome (51476467415).

The spelling of 20144223313 in words is "twenty billion, one hundred forty-four million, two hundred twenty-three thousand, three hundred thirteen".