30313042 has 4 divisors (see below), whose sum is σ = 45469566. Its totient is φ = 15156520.

The previous prime is 30313039. The next prime is 30313043. The reversal of 30313042 is 24031303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24031303 = 2503 ⋅9601.

It can be written as a sum of positive squares in only one way, i.e., 24117921 + 6195121 = 4911^2 + 2489^2 .

It is not an unprimeable number, because it can be changed into a prime (30313043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7578259 + ... + 7578262.

Almost surely, 2^30313042 is an apocalyptic number.

30313042 is a deficient number, since it is larger than the sum of its proper divisors (15156524).

30313042 is a wasteful number, since it uses less digits than its factorization.

30313042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15156523.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30313042 is about 5505.7281080707. The cubic root of 30313042 is about 311.8002844702.

Adding to 30313042 its reverse (24031303), we get a palindrome (54344345).

The spelling of 30313042 in words is "thirty million, three hundred thirteen thousand, forty-two".