30313513 has 2 divisors, whose sum is σ = 30313514. Its totient is φ = 30313512.

The previous prime is 30313501. The next prime is 30313519. The reversal of 30313513 is 31531303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29452329 + 861184 = 5427^2 + 928^2 .

It is an emirp because it is prime and its reverse (31531303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30313513 - 2⁹ = 30313001 is a prime.

It is not a weakly prime, because it can be changed into another prime (30313519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156756 + 15156757.

It is an arithmetic number, because the mean of its divisors is an integer number (15156757).

Almost surely, 2^30313513 is an apocalyptic number.

It is an amenable number.

30313513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30313513 is an equidigital number, since it uses as much as digits as its factorization.

30313513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 30313513 is about 5505.7708815388. The cubic root of 30313513 is about 311.8018993655.

Adding to 30313513 its reverse (31531303), we get a palindrome (61844816).

The spelling of 30313513 in words is "thirty million, three hundred thirteen thousand, five hundred thirteen".