120020323123 has 2 divisors, whose sum is σ = 120020323124. Its totient is φ = 120020323122.

The previous prime is 120020323103. The next prime is 120020323151. The reversal of 120020323123 is 321323020021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120020323123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120020323123.

It is not a weakly prime, because it can be changed into another prime (120020323103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010161561 + 60010161562.

It is an arithmetic number, because the mean of its divisors is an integer number (60010161562).

Almost surely, 2^120020323123 is an apocalyptic number.

120020323123 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020323123 is an equidigital number, since it uses as much as digits as its factorization.

120020323123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 120020323123 its reverse (321323020021), we get a palindrome (441343343144).

The spelling of 120020323123 in words is "one hundred twenty billion, twenty million, three hundred twenty-three thousand, one hundred twenty-three".