1200123313 has 8 divisors (see below), whose sum is σ = 1273315680. Its totient is φ = 1127219520.

The previous prime is 1200123283. The next prime is 1200123319. The reversal of 1200123313 is 3133210021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200123313 - 2²¹ = 1198026161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200123319) 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, 63543 + ... + 80236.

It is an arithmetic number, because the mean of its divisors is an integer number (159164460).

Almost surely, 2^1200123313 is an apocalyptic number.

It is an amenable number.

1200123313 is a deficient number, since it is larger than the sum of its proper divisors (73192367).

1200123313 is a wasteful number, since it uses less digits than its factorization.

1200123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144287.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1200123313 is about 34642.7959754983. The cubic root of 1200123313 is about 1062.6949678292.

Adding to 1200123313 its reverse (3133210021), we get a palindrome (4333333334).

The spelling of 1200123313 in words is "one billion, two hundred million, one hundred twenty-three thousand, three hundred thirteen".