121422423407 has 2 divisors, whose sum is σ = 121422423408. Its totient is φ = 121422423406.

The previous prime is 121422423389. The next prime is 121422423431. The reversal of 121422423407 is 704324224121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121422423407 - 2¹⁰ = 121422422383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121422423487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60711211703 + 60711211704.

It is an arithmetic number, because the mean of its divisors is an integer number (60711211704).

Almost surely, 2^121422423407 is an apocalyptic number.

121422423407 is a deficient number, since it is larger than the sum of its proper divisors (1).

121422423407 is an equidigital number, since it uses as much as digits as its factorization.

121422423407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 121422423407 its reverse (704324224121), we get a palindrome (825746647528).

The spelling of 121422423407 in words is "one hundred twenty-one billion, four hundred twenty-two million, four hundred twenty-three thousand, four hundred seven".