30231203123 has 16 divisors (see below), whose sum is σ = 33286247136. Its totient is φ = 27227504640.

The previous prime is 30231203081. The next prime is 30231203141. The reversal of 30231203123 is 32130213203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231203123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231203095 and 30231203104.

It is not an unprimeable number, because it can be changed into a prime (30231202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3895415 + ... + 3903167.

It is an arithmetic number, because the mean of its divisors is an integer number (2080390446).

Almost surely, 2^30231203123 is an apocalyptic number.

30231203123 is a deficient number, since it is larger than the sum of its proper divisors (3055044013).

30231203123 is a wasteful number, since it uses less digits than its factorization.

30231203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11014.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30231203123 its reverse (32130213203), we get a palindrome (62361416326).

The spelling of 30231203123 in words is "thirty billion, two hundred thirty-one million, two hundred three thousand, one hundred twenty-three".