1200113003321 has 4 divisors (see below), whose sum is σ = 1219786987044. Its totient is φ = 1180439019600.

The previous prime is 1200113003311. The next prime is 1200113003407. The reversal of 1200113003321 is 1233003110021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177514755625 + 1022598247696 = 421325^2 + 1011236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200113003321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200113003321.

It is not an unprimeable number, because it can be changed into a prime (1200113003311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9836991770 + ... + 9836991891.

It is an arithmetic number, because the mean of its divisors is an integer number (304946746761).

Almost surely, 2^{1200113003321} is an apocalyptic number.

It is an amenable number.

1200113003321 is a deficient number, since it is larger than the sum of its proper divisors (19673983723).

1200113003321 is an equidigital number, since it uses as much as digits as its factorization.

1200113003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19673983722.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1200113003321 its reverse (1233003110021), we get a palindrome (2433116113342).

The spelling of 1200113003321 in words is "one trillion, two hundred billion, one hundred thirteen million, three thousand, three hundred twenty-one".