30123020223 has 12 divisors (see below), whose sum is σ = 45801083640. Its totient is φ = 19025065296.

The previous prime is 30123020203. The next prime is 30123020227. The reversal of 30123020223 is 32202032103.

It is a happy number.

It is not a de Polignac number, because 30123020223 - 2¹⁷ = 30122889151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30123020196 and 30123020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123020227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88078836 + ... + 88079177.

It is an arithmetic number, because the mean of its divisors is an integer number (3816756970).

Almost surely, 2^30123020223 is an apocalyptic number.

30123020223 is a deficient number, since it is larger than the sum of its proper divisors (15678063417).

30123020223 is a wasteful number, since it uses less digits than its factorization.

30123020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176158038 (or 176158035 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30123020223 its reverse (32202032103), we get a palindrome (62325052326).

The spelling of 30123020223 in words is "thirty billion, one hundred twenty-three million, twenty thousand, two hundred twenty-three".