120003123 has 4 divisors (see below), whose sum is σ = 160004168. Its totient is φ = 80002080.

The previous prime is 120003113. The next prime is 120003127. The reversal of 120003123 is 321300021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120003123 - 2⁸ = 120002867 is a prime.

It is a super-3 number, since 3×120003123³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120003099 and 120003108.

It is not an unprimeable number, because it can be changed into a prime (120003127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20000518 + ... + 20000523.

It is an arithmetic number, because the mean of its divisors is an integer number (40001042).

Almost surely, 2^120003123 is an apocalyptic number.

120003123 is a deficient number, since it is larger than the sum of its proper divisors (40001045).

120003123 is an equidigital number, since it uses as much as digits as its factorization.

120003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40001044.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 120003123 is about 10954.5936939715. The cubic root of 120003123 is about 493.2466937069.

Adding to 120003123 its reverse (321300021), we get a palindrome (441303144).

The spelling of 120003123 in words is "one hundred twenty million, three thousand, one hundred twenty-three".