30142331 has 8 divisors (see below), whose sum is σ = 30508800. Its totient is φ = 29778408.

The previous prime is 30142313. The next prime is 30142361. The reversal of 30142331 is 13324103.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30142331 - 2⁶ = 30142267 is a prime.

It is a super-2 number, since 2×30142331² = 1817120236227122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30142361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32780 + ... + 33686.

It is an arithmetic number, because the mean of its divisors is an integer number (3813600).

Almost surely, 2^30142331 is an apocalyptic number.

30142331 is a deficient number, since it is larger than the sum of its proper divisors (366469).

30142331 is a wasteful number, since it uses less digits than its factorization.

30142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30142331 is about 5490.2031838539. The cubic root of 30142331 is about 311.2138705288.

Adding to 30142331 its reverse (13324103), we get a palindrome (43466434).

The spelling of 30142331 in words is "thirty million, one hundred forty-two thousand, three hundred thirty-one".