12720750127 has 2 divisors, whose sum is σ = 12720750128. Its totient is φ = 12720750126.

The previous prime is 12720750103. The next prime is 12720750137. The reversal of 12720750127 is 72105702721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12720750127 - 2³¹ = 10573266479 is a prime.

It is a super-2 number, since 2×12720750127² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12720750092 and 12720750101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12720750137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6360375063 + 6360375064.

It is an arithmetic number, because the mean of its divisors is an integer number (6360375064).

Almost surely, 2^12720750127 is an apocalyptic number.

12720750127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12720750127 is an equidigital number, since it uses as much as digits as its factorization.

12720750127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13720, while the sum is 34.

The spelling of 12720750127 in words is "twelve billion, seven hundred twenty million, seven hundred fifty thousand, one hundred twenty-seven".