1200123031133 has 8 divisors (see below), whose sum is σ = 1293543910176. Its totient is φ = 1106859826800.

The previous prime is 1200123031127. The next prime is 1200123031147. The reversal of 1200123031133 is 3311303210021.

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

It is not a de Polignac number, because 1200123031133 - 2¹⁰ = 1200123030109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200123031103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39402863 + ... + 39433308.

It is an arithmetic number, because the mean of its divisors is an integer number (161692988772).

Almost surely, 2^{1200123031133} is an apocalyptic number.

1200123031133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1200123031133 is a deficient number, since it is larger than the sum of its proper divisors (93420879043).

1200123031133 is a wasteful number, since it uses less digits than its factorization.

1200123031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78837355.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1200123031133 its reverse (3311303210021), we get a palindrome (4511426241154).

The spelling of 1200123031133 in words is "one trillion, two hundred billion, one hundred twenty-three million, thirty-one thousand, one hundred thirty-three".