30113873 has 2 divisors, whose sum is σ = 30113874. Its totient is φ = 30113872.

The previous prime is 30113849. The next prime is 30113891. The reversal of 30113873 is 37831103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28654609 + 1459264 = 5353^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 30113873 - 2²⁰ = 29065297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30113813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056936 + 15056937.

It is an arithmetic number, because the mean of its divisors is an integer number (15056937).

Almost surely, 2^30113873 is an apocalyptic number.

It is an amenable number.

30113873 is a deficient number, since it is larger than the sum of its proper divisors (1).

30113873 is an equidigital number, since it uses as much as digits as its factorization.

30113873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 30113873 is about 5487.6108644837. The cubic root of 30113873 is about 311.1158985327.

Adding to 30113873 its reverse (37831103), we get a palindrome (67944976).

The spelling of 30113873 in words is "thirty million, one hundred thirteen thousand, eight hundred seventy-three".