1200011203323 has 12 divisors (see below), whose sum is σ = 1748688893640. Its totient is φ = 792927756096.

The previous prime is 1200011203319. The next prime is 1200011203373. The reversal of 1200011203323 is 3233021100021.

It is not a de Polignac number, because 1200011203323 - 2² = 1200011203319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200011203296 and 1200011203305.

It is not an unprimeable number, because it can be changed into a prime (1200011203373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 589974993 + ... + 589977026.

It is an arithmetic number, because the mean of its divisors is an integer number (145724074470).

Almost surely, 2^{1200011203323} is an apocalyptic number.

1200011203323 is a deficient number, since it is larger than the sum of its proper divisors (548677690317).

1200011203323 is a wasteful number, since it uses less digits than its factorization.

1200011203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179952138 (or 1179952135 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1200011203323 its reverse (3233021100021), we get a palindrome (4433032303344).

The spelling of 1200011203323 in words is "one trillion, two hundred billion, eleven million, two hundred three thousand, three hundred twenty-three".