120200123 has 2 divisors, whose sum is σ = 120200124. Its totient is φ = 120200122.

The previous prime is 120200071. The next prime is 120200167. The reversal of 120200123 is 321002021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120200123 is a prime.

It is not a weakly prime, because it can be changed into another prime (120200623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100061 + 60100062.

It is an arithmetic number, because the mean of its divisors is an integer number (60100062).

Almost surely, 2^120200123 is an apocalyptic number.

120200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

120200123 is an equidigital number, since it uses as much as digits as its factorization.

120200123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 120200123 is about 10963.5816684148. The cubic root of 120200123 is about 493.5164546728.

Adding to 120200123 its reverse (321002021), we get a palindrome (441202144).

The spelling of 120200123 in words is "one hundred twenty million, two hundred thousand, one hundred twenty-three".