501304220213 has 2 divisors, whose sum is σ = 501304220214. Its totient is φ = 501304220212.

The previous prime is 501304220191. The next prime is 501304220237. The reversal of 501304220213 is 312022403105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361606187569 + 139698032644 = 601337^2 + 373762^2 .

It is a cyclic number.

It is not a de Polignac number, because 501304220213 - 2²² = 501300025909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501304220243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250652110106 + 250652110107.

It is an arithmetic number, because the mean of its divisors is an integer number (250652110107).

Almost surely, 2^501304220213 is an apocalyptic number.

It is an amenable number.

501304220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

501304220213 is an equidigital number, since it uses as much as digits as its factorization.

501304220213 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 23.

Adding to 501304220213 its reverse (312022403105), we get a palindrome (813326623318).

The spelling of 501304220213 in words is "five hundred one billion, three hundred four million, two hundred twenty thousand, two hundred thirteen".