121224340433123 has 2 divisors, whose sum is σ = 121224340433124. Its totient is φ = 121224340433122.

The previous prime is 121224340433107. The next prime is 121224340433137. The reversal of 121224340433123 is 321334043422121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121224340433123 - 2⁴ = 121224340433107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121224340439123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60612170216561 + 60612170216562.

It is an arithmetic number, because the mean of its divisors is an integer number (60612170216562).

Almost surely, 2^{121224340433123} is an apocalyptic number.

121224340433123 is a deficient number, since it is larger than the sum of its proper divisors (1).

121224340433123 is an equidigital number, since it uses as much as digits as its factorization.

121224340433123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 121224340433123 its reverse (321334043422121), we get a palindrome (442558383855244).

The spelling of 121224340433123 in words is "one hundred twenty-one trillion, two hundred twenty-four billion, three hundred forty million, four hundred thirty-three thousand, one hundred twenty-three".