30240013 has 2 divisors, whose sum is σ = 30240014. Its totient is φ = 30240012.

The previous prime is 30239999. The next prime is 30240017. The reversal of 30240013 is 31004203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28697449 + 1542564 = 5357^2 + 1242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30240013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30239975 and 30240002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30240017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15120006 + 15120007.

It is an arithmetic number, because the mean of its divisors is an integer number (15120007).

Almost surely, 2^30240013 is an apocalyptic number.

It is an amenable number.

30240013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30240013 is an equidigital number, since it uses as much as digits as its factorization.

30240013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30240013 is about 5499.0920159605. The cubic root of 30240013 is about 311.5496907555.

Adding to 30240013 its reverse (31004203), we get a palindrome (61244216).

The spelling of 30240013 in words is "thirty million, two hundred forty thousand, thirteen".