501322313 has 2 divisors, whose sum is σ = 501322314. Its totient is φ = 501322312.

The previous prime is 501322309. The next prime is 501322369. The reversal of 501322313 is 313223105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408161209 + 93161104 = 20203^2 + 9652^2 .

It is a cyclic number.

It is not a de Polignac number, because 501322313 - 2² = 501322309 is a prime.

It is not a weakly prime, because it can be changed into another prime (501322373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250661156 + 250661157.

It is an arithmetic number, because the mean of its divisors is an integer number (250661157).

Almost surely, 2^501322313 is an apocalyptic number.

It is an amenable number.

501322313 is a deficient number, since it is larger than the sum of its proper divisors (1).

501322313 is an equidigital number, since it uses as much as digits as its factorization.

501322313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 501322313 is about 22390.2280694056. The cubic root of 501322313 is about 794.3995904402.

Adding to 501322313 its reverse (313223105), we get a palindrome (814545418).

The spelling of 501322313 in words is "five hundred one million, three hundred twenty-two thousand, three hundred thirteen".