12300123991 has 2 divisors, whose sum is σ = 12300123992. Its totient is φ = 12300123990.

The previous prime is 12300123961. The next prime is 12300124009. The reversal of 12300123991 is 19932100321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12300123991 - 2¹¹ = 12300121943 is a prime.

It is a super-3 number, since 3×12300123991³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12300123911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6150061995 + 6150061996.

It is an arithmetic number, because the mean of its divisors is an integer number (6150061996).

Almost surely, 2^12300123991 is an apocalyptic number.

12300123991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12300123991 is an equidigital number, since it uses as much as digits as its factorization.

12300123991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 12300123991 in words is "twelve billion, three hundred million, one hundred twenty-three thousand, nine hundred ninety-one".