1320003211011 has 32 divisors (see below), whose sum is σ = 1841363876352. Its totient is φ = 839526716160.

The previous prime is 1320003210979. The next prime is 1320003211063. The reversal of 1320003211011 is 1101123000231.

It is a happy number.

It is not a de Polignac number, because 1320003211011 - 2⁵ = 1320003210979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320003211811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43677696 + ... + 43707906.

It is an arithmetic number, because the mean of its divisors is an integer number (57542621136).

Almost surely, 2^{1320003211011} is an apocalyptic number.

1320003211011 is a deficient number, since it is larger than the sum of its proper divisors (521360665341).

1320003211011 is a wasteful number, since it uses less digits than its factorization.

1320003211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31883.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1320003211011 its reverse (1101123000231), we get a palindrome (2421126211242).

The spelling of 1320003211011 in words is "one trillion, three hundred twenty billion, three million, two hundred eleven thousand, eleven".