12315123127 has 2 divisors, whose sum is σ = 12315123128. Its totient is φ = 12315123126.

The previous prime is 12315123109. The next prime is 12315123131. The reversal of 12315123127 is 72132151321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12315123127 - 2⁷ = 12315122999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12315123095 and 12315123104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12315123167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6157561563 + 6157561564.

It is an arithmetic number, because the mean of its divisors is an integer number (6157561564).

Almost surely, 2^12315123127 is an apocalyptic number.

12315123127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12315123127 is an equidigital number, since it uses as much as digits as its factorization.

12315123127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

Adding to 12315123127 its reverse (72132151321), we get a palindrome (84447274448).

The spelling of 12315123127 in words is "twelve billion, three hundred fifteen million, one hundred twenty-three thousand, one hundred twenty-seven".