30123003023 has 4 divisors (see below), whose sum is σ = 30142526928. Its totient is φ = 30103479120.

The previous prime is 30123002957. The next prime is 30123003059. The reversal of 30123003023 is 32030032103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32030032103 = 1619 ⋅19783837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123003023 is a prime.

It is a super-2 number, since 2×30123003023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30123002992 and 30123003010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123003083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9759638 + ... + 9762723.

It is an arithmetic number, because the mean of its divisors is an integer number (7535631732).

Almost surely, 2^30123003023 is an apocalyptic number.

30123003023 is a deficient number, since it is larger than the sum of its proper divisors (19523905).

30123003023 is a wasteful number, since it uses less digits than its factorization.

30123003023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19523904.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30123003023 its reverse (32030032103), we get a palindrome (62153035126).

The spelling of 30123003023 in words is "thirty billion, one hundred twenty-three million, three thousand, twenty-three".