316030042 has 4 divisors (see below), whose sum is σ = 474045066. Its totient is φ = 158015020.

The previous prime is 316030037. The next prime is 316030069. The reversal of 316030042 is 240030613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240030613 = 31 ⋅7742923.

It can be written as a sum of positive squares in only one way, i.e., 315737361 + 292681 = 17769^2 + 541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79007509 + ... + 79007512.

Almost surely, 2^316030042 is an apocalyptic number.

316030042 is a deficient number, since it is larger than the sum of its proper divisors (158015024).

316030042 is a wasteful number, since it uses less digits than its factorization.

316030042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158015023.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 316030042 is about 17777.2338118167. The cubic root of 316030042 is about 681.1500449596.

Adding to 316030042 its reverse (240030613), we get a palindrome (556060655).

The spelling of 316030042 in words is "three hundred sixteen million, thirty thousand, forty-two".