650421201013 has 2 divisors, whose sum is σ = 650421201014. Its totient is φ = 650421201012.

The previous prime is 650421201011. The next prime is 650421201037. The reversal of 650421201013 is 310102124056.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 480827135889 + 169594065124 = 693417^2 + 411818^2 .

It is a cyclic number.

It is not a de Polignac number, because 650421201013 - 2¹ = 650421201011 is a prime.

Together with 650421201011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650421201011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325210600506 + 325210600507.

It is an arithmetic number, because the mean of its divisors is an integer number (325210600507).

Almost surely, 2^650421201013 is an apocalyptic number.

It is an amenable number.

650421201013 is a deficient number, since it is larger than the sum of its proper divisors (1).

650421201013 is an equidigital number, since it uses as much as digits as its factorization.

650421201013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 650421201013 its reverse (310102124056), we get a palindrome (960523325069).

The spelling of 650421201013 in words is "six hundred fifty billion, four hundred twenty-one million, two hundred one thousand, thirteen".