1321132020011 has 8 divisors (see below), whose sum is σ = 1328010556560. Its totient is φ = 1314253827072.

The previous prime is 1321132019993. The next prime is 1321132020031. The reversal of 1321132020011 is 1100202311231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321132020011 - 2¹⁴ = 1321132003627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321132020031) 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, 12116111 + ... + 12224663.

It is an arithmetic number, because the mean of its divisors is an integer number (166001319570).

Almost surely, 2^{1321132020011} is an apocalyptic number.

1321132020011 is a deficient number, since it is larger than the sum of its proper divisors (6878536549).

1321132020011 is a wasteful number, since it uses less digits than its factorization.

1321132020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171805.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1321132020011 its reverse (1100202311231), we get a palindrome (2421334331242).

The spelling of 1321132020011 in words is "one trillion, three hundred twenty-one billion, one hundred thirty-two million, twenty thousand, eleven".