30123130023 has 24 divisors (see below), whose sum is σ = 49758144800. Its totient is φ = 17202461184.

The previous prime is 30123130003. The next prime is 30123130091. The reversal of 30123130023 is 32003132103.

It is not a de Polignac number, because 30123130023 - 2²⁸ = 29854694567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30123129978 and 30123130005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123130003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47218 + ... + 249951.

Almost surely, 2^30123130023 is an apocalyptic number.

30123130023 is a deficient number, since it is larger than the sum of its proper divisors (19635014777).

30123130023 is a wasteful number, since it uses less digits than its factorization.

30123130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298791 (or 298788 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30123130023 its reverse (32003132103), we get a palindrome (62126262126).

The spelling of 30123130023 in words is "thirty billion, one hundred twenty-three million, one hundred thirty thousand, twenty-three".