1200120030123 has 8 divisors (see below), whose sum is σ = 1828754331648. Its totient is φ = 685782874344.

The previous prime is 1200120030103. The next prime is 1200120030157. The reversal of 1200120030123 is 3210300210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200120030123 - 2⁵ = 1200120030091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200120030103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28574286411 + ... + 28574286452.

It is an arithmetic number, because the mean of its divisors is an integer number (228594291456).

Almost surely, 2^{1200120030123} is an apocalyptic number.

1200120030123 is a deficient number, since it is larger than the sum of its proper divisors (628634301525).

1200120030123 is an equidigital number, since it uses as much as digits as its factorization.

1200120030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57148572873.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1200120030123 its reverse (3210300210021), we get a palindrome (4410420240144).

The spelling of 1200120030123 in words is "one trillion, two hundred billion, one hundred twenty million, thirty thousand, one hundred twenty-three".