30123131300231 has 2 divisors, whose sum is σ = 30123131300232. Its totient is φ = 30123131300230.

The previous prime is 30123131300209. The next prime is 30123131300257. The reversal of 30123131300231 is 13200313132103.

It is a weak prime.

It is an emirp because it is prime and its reverse (13200313132103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30123131300231 - 2¹⁰ = 30123131299207 is a prime.

It is a super-2 number, since 2×30123131300231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30123131300197 and 30123131300206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30123131300291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061565650115 + 15061565650116.

It is an arithmetic number, because the mean of its divisors is an integer number (15061565650116).

Almost surely, 2^{30123131300231} is an apocalyptic number.

30123131300231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123131300231 is an equidigital number, since it uses as much as digits as its factorization.

30123131300231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 30123131300231 its reverse (13200313132103), we get a palindrome (43323444432334).

The spelling of 30123131300231 in words is "thirty trillion, one hundred twenty-three billion, one hundred thirty-one million, three hundred thousand, two hundred thirty-one".