1320233131011 has 16 divisors (see below), whose sum is σ = 1801548864000. Its totient is φ = 859726447008.

The previous prime is 1320233130929. The next prime is 1320233131031. The reversal of 1320233131011 is 1101313320231.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1320233131011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320233131031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23726811 + ... + 23782388.

It is an arithmetic number, because the mean of its divisors is an integer number (112596804000).

Almost surely, 2^{1320233131011} is an apocalyptic number.

1320233131011 is a deficient number, since it is larger than the sum of its proper divisors (481315732989).

1320233131011 is a wasteful number, since it uses less digits than its factorization.

1320233131011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47509418.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1320233131011 its reverse (1101313320231), we get a palindrome (2421546451242).

The spelling of 1320233131011 in words is "one trillion, three hundred twenty billion, two hundred thirty-three million, one hundred thirty-one thousand, eleven".