1200331303311 has 8 divisors (see below), whose sum is σ = 1829076271744. Its totient is φ = 685903601880.

The previous prime is 1200331303277. The next prime is 1200331303319. The reversal of 1200331303311 is 1133031330021.

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

It is not a de Polignac number, because 1200331303311 - 2⁶ = 1200331303247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 57158633491 = 1200331303311 / (1 + 2 + 0 + 0 + 3 + 3 + 1 + 3 + 0 + 3 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200331303319) 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, 28579316725 + ... + 28579316766.

It is an arithmetic number, because the mean of its divisors is an integer number (228634533968).

Almost surely, 2^{1200331303311} is an apocalyptic number.

1200331303311 is a deficient number, since it is larger than the sum of its proper divisors (628744968433).

1200331303311 is an equidigital number, since it uses as much as digits as its factorization.

1200331303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57158633501.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1200331303311 its reverse (1133031330021), we get a palindrome (2333362633332).

The spelling of 1200331303311 in words is "one trillion, two hundred billion, three hundred thirty-one million, three hundred three thousand, three hundred eleven".