30500213 has 2 divisors, whose sum is σ = 30500214. Its totient is φ = 30500212.

The previous prime is 30500207. The next prime is 30500219. The reversal of 30500213 is 31200503.

It is a balanced prime because it is at equal distance from previous prime (30500207) and next prime (30500219).

It can be written as a sum of positive squares in only one way, i.e., 19695844 + 10804369 = 4438^2 + 3287^2 .

It is a cyclic number.

It is not a de Polignac number, because 30500213 - 2¹⁸ = 30238069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30500219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250106 + 15250107.

It is an arithmetic number, because the mean of its divisors is an integer number (15250107).

Almost surely, 2^30500213 is an apocalyptic number.

It is an amenable number.

30500213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30500213 is an equidigital number, since it uses as much as digits as its factorization.

30500213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 30500213 is about 5522.6997926739. The cubic root of 30500213 is about 312.4407157939.

Adding to 30500213 its reverse (31200503), we get a palindrome (61700716).

The spelling of 30500213 in words is "thirty million, five hundred thousand, two hundred thirteen".