30123113223 has 16 divisors (see below), whose sum is σ = 46375105280. Its totient is φ = 17035750656.

The previous prime is 30123113203. The next prime is 30123113257. The reversal of 30123113223 is 32231132103.

It is not a de Polignac number, because 30123113223 - 2¹³ = 30123105031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30123113223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123113203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7391953 + ... + 7396026.

It is an arithmetic number, because the mean of its divisors is an integer number (2898444080).

Almost surely, 2^30123113223 is an apocalyptic number.

30123113223 is a deficient number, since it is larger than the sum of its proper divisors (16251992057).

30123113223 is a wasteful number, since it uses less digits than its factorization.

30123113223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14788086.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30123113223 its reverse (32231132103), we get a palindrome (62354245326).

The spelling of 30123113223 in words is "thirty billion, one hundred twenty-three million, one hundred thirteen thousand, two hundred twenty-three".