30120143 has 8 divisors (see below), whose sum is σ = 30427488. Its totient is φ = 29814784.

The previous prime is 30120137. The next prime is 30120161. The reversal of 30120143 is 34102103.

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 30120143 - 2¹⁰ = 30119119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59630 + ... + 60132.

It is an arithmetic number, because the mean of its divisors is an integer number (3803436).

Almost surely, 2^30120143 is an apocalyptic number.

30120143 is a deficient number, since it is larger than the sum of its proper divisors (307345).

30120143 is a wasteful number, since it uses less digits than its factorization.

30120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30120143 is about 5488.1821216137. The cubic root of 30120143 is about 311.1374894820.

Adding to 30120143 its reverse (34102103), we get a palindrome (64222246).

The spelling of 30120143 in words is "thirty million, one hundred twenty thousand, one hundred forty-three".