1331322323211 has 8 divisors (see below), whose sum is σ = 1972329367760. Its totient is φ = 887548215456.

The previous prime is 1331322323209. The next prime is 1331322323231. The reversal of 1331322323211 is 1123232231331.

1331322323211 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 322 + 323 + 2 + 11 = 666.

It is not a de Polignac number, because 1331322323211 - 2¹ = 1331322323209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 49308234193 = 1331322323211 / (1 + 3 + 3 + 1 + 3 + 2 + 2 + 3 + 2 + 3 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331322323231) 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, 24654117070 + ... + 24654117123.

It is an arithmetic number, because the mean of its divisors is an integer number (246541170970).

Almost surely, 2^{1331322323211} is an apocalyptic number.

1331322323211 is a deficient number, since it is larger than the sum of its proper divisors (641007044549).

1331322323211 is an equidigital number, since it uses as much as digits as its factorization.

1331322323211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49308234202 (or 49308234196 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1331322323211 its reverse (1123232231331), we get a palindrome (2454554554542).

The spelling of 1331322323211 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-two million, three hundred twenty-three thousand, two hundred eleven".