122431427 has 2 divisors, whose sum is σ = 122431428. Its totient is φ = 122431426.

The previous prime is 122431403. The next prime is 122431447. The reversal of 122431427 is 724134221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122431427 - 2⁸ = 122431171 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122431396 and 122431405.

It is not a weakly prime, because it can be changed into another prime (122431447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61215713 + 61215714.

It is an arithmetic number, because the mean of its divisors is an integer number (61215714).

Almost surely, 2^122431427 is an apocalyptic number.

122431427 is a deficient number, since it is larger than the sum of its proper divisors (1).

122431427 is an equidigital number, since it uses as much as digits as its factorization.

122431427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 122431427 is about 11064.8735645736. The cubic root of 122431427 is about 496.5515064645.

Adding to 122431427 its reverse (724134221), we get a palindrome (846565648).

The spelling of 122431427 in words is "one hundred twenty-two million, four hundred thirty-one thousand, four hundred twenty-seven".