30231304123 has 4 divisors (see below), whose sum is σ = 30243691368. Its totient is φ = 30218916880.

The previous prime is 30231304109. The next prime is 30231304133. The reversal of 30231304123 is 32140313203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32140313203 = 17 ⋅1890606659.

It is a cyclic number.

It is not a de Polignac number, because 30231304123 - 2¹³ = 30231295931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231304094 and 30231304103.

It is not an unprimeable number, because it can be changed into a prime (30231304133) 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, 6189961 + ... + 6194842.

It is an arithmetic number, because the mean of its divisors is an integer number (7560922842).

Almost surely, 2^30231304123 is an apocalyptic number.

30231304123 is a deficient number, since it is larger than the sum of its proper divisors (12387245).

30231304123 is a wasteful number, since it uses less digits than its factorization.

30231304123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12387244.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30231304123 its reverse (32140313203), we get a palindrome (62371617326).

The spelling of 30231304123 in words is "thirty billion, two hundred thirty-one million, three hundred four thousand, one hundred twenty-three".