30220123 has 4 divisors (see below), whose sum is σ = 30790368. Its totient is φ = 29649880.

The previous prime is 30220121. The next prime is 30220139. The reversal of 30220123 is 32102203.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30220123 - 2¹ = 30220121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30220121) 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, 285043 + ... + 285148.

It is an arithmetic number, because the mean of its divisors is an integer number (7697592).

Almost surely, 2^30220123 is an apocalyptic number.

30220123 is a deficient number, since it is larger than the sum of its proper divisors (570245).

30220123 is an equidigital number, since it uses as much as digits as its factorization.

30220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570244.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30220123 is about 5497.2832381095. The cubic root of 30220123 is about 311.4813697702.

Adding to 30220123 its reverse (32102203), we get a palindrome (62322326).

The spelling of 30220123 in words is "thirty million, two hundred twenty thousand, one hundred twenty-three".