1001321011211 has 8 divisors (see below), whose sum is σ = 1046705510400. Its totient is φ = 956754250920.

The previous prime is 1001321011177. The next prime is 1001321011241. The reversal of 1001321011211 is 1121101231001.

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 1001321011211 - 2¹⁰ = 1001321010187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001321011241) 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, 204432221 + ... + 204437118.

It is an arithmetic number, because the mean of its divisors is an integer number (130838188800).

Almost surely, 2^{1001321011211} is an apocalyptic number.

1001321011211 is a deficient number, since it is larger than the sum of its proper divisors (45384499189).

1001321011211 is an equidigital number, since it uses as much as digits as its factorization.

1001321011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408869449.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1001321011211 its reverse (1121101231001), we get a palindrome (2122422242212).

The spelling of 1001321011211 in words is "one trillion, one billion, three hundred twenty-one million, eleven thousand, two hundred eleven".