120424040123 has 2 divisors, whose sum is σ = 120424040124. Its totient is φ = 120424040122.

The previous prime is 120424040117. The next prime is 120424040197. The reversal of 120424040123 is 321040424021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120424040123 - 2¹² = 120424036027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (120424048123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60212020061 + 60212020062.

It is an arithmetic number, because the mean of its divisors is an integer number (60212020062).

Almost surely, 2^120424040123 is an apocalyptic number.

120424040123 is a deficient number, since it is larger than the sum of its proper divisors (1).

120424040123 is an equidigital number, since it uses as much as digits as its factorization.

120424040123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 120424040123 its reverse (321040424021), we get a palindrome (441464464144).

The spelling of 120424040123 in words is "one hundred twenty billion, four hundred twenty-four million, forty thousand, one hundred twenty-three".