1200212311323 has 24 divisors (see below), whose sum is σ = 1704726088128. Its totient is φ = 750944374128.

The previous prime is 1200212311289. The next prime is 1200212311351. The reversal of 1200212311323 is 3231132120021.

It is not a de Polignac number, because 1200212311323 - 2⁹ = 1200212310811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200212311323.

It is not an unprimeable number, because it can be changed into a prime (1200212311393) 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 23 ways as a sum of consecutive naturals, for example, 5062761 + ... + 5294522.

It is an arithmetic number, because the mean of its divisors is an integer number (71030253672).

Almost surely, 2^{1200212311323} is an apocalyptic number.

1200212311323 is a deficient number, since it is larger than the sum of its proper divisors (504513776805).

1200212311323 is a wasteful number, since it uses less digits than its factorization.

1200212311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10357431 (or 10357412 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1200212311323 its reverse (3231132120021), we get a palindrome (4431344431344).

The spelling of 1200212311323 in words is "one trillion, two hundred billion, two hundred twelve million, three hundred eleven thousand, three hundred twenty-three".