120400320127 has 2 divisors, whose sum is σ = 120400320128. Its totient is φ = 120400320126.

The previous prime is 120400319987. The next prime is 120400320151. The reversal of 120400320127 is 721023004021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120400320127 is a prime.

It is a super-2 number, since 2×120400320127² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120400320098 and 120400320107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120400320197) 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 as a sum of consecutive naturals, namely, 60200160063 + 60200160064.

It is an arithmetic number, because the mean of its divisors is an integer number (60200160064).

Almost surely, 2^120400320127 is an apocalyptic number.

120400320127 is a deficient number, since it is larger than the sum of its proper divisors (1).

120400320127 is an equidigital number, since it uses as much as digits as its factorization.

120400320127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 120400320127 its reverse (721023004021), we get a palindrome (841423324148).

The spelling of 120400320127 in words is "one hundred twenty billion, four hundred million, three hundred twenty thousand, one hundred twenty-seven".