121412423024021 has 2 divisors, whose sum is σ = 121412423024022. Its totient is φ = 121412423024020.

The previous prime is 121412423024017. The next prime is 121412423024051. The reversal of 121412423024021 is 120420324214121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113556516564100 + 7855906459921 = 10656290^2 + 2802839^2 .

It is a cyclic number.

It is not a de Polignac number, because 121412423024021 - 2² = 121412423024017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121412423024051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60706211512010 + 60706211512011.

It is an arithmetic number, because the mean of its divisors is an integer number (60706211512011).

Almost surely, 2^{121412423024021} is an apocalyptic number.

It is an amenable number.

121412423024021 is a deficient number, since it is larger than the sum of its proper divisors (1).

121412423024021 is an equidigital number, since it uses as much as digits as its factorization.

121412423024021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 121412423024021 its reverse (120420324214121), we get a palindrome (241832747238142).

The spelling of 121412423024021 in words is "one hundred twenty-one trillion, four hundred twelve billion, four hundred twenty-three million, twenty-four thousand, twenty-one".