30123163 has 4 divisors (see below), whose sum is σ = 34426480. Its totient is φ = 25819848.

The previous prime is 30123157. The next prime is 30123173. The reversal of 30123163 is 36132103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30123163.

It is not an unprimeable number, because it can be changed into a prime (30123173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151648 + ... + 2151661.

It is an arithmetic number, because the mean of its divisors is an integer number (8606620).

Almost surely, 2^30123163 is an apocalyptic number.

30123163 is a deficient number, since it is larger than the sum of its proper divisors (4303317).

30123163 is an equidigital number, since it uses as much as digits as its factorization.

30123163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303316.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 30123163 is about 5488.4572513594. The cubic root of 30123163 is about 311.1478878812.

Adding to 30123163 its reverse (36132103), we get a palindrome (66255266).

The spelling of 30123163 in words is "thirty million, one hundred twenty-three thousand, one hundred sixty-three".