11331310101211 has 4 divisors (see below), whose sum is σ = 11927694843400. Its totient is φ = 10734925359024.

The previous prime is 11331310101161. The next prime is 11331310101217. The reversal of 11331310101211 is 11210101313311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11331310101211 - 2⁹ = 11331310100699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 596384742169 = 11331310101211 / (1 + 1 + 3 + 3 + 1 + 3 + 1 + 0 + 1 + 0 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331310101217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298192371066 + ... + 298192371103.

It is an arithmetic number, because the mean of its divisors is an integer number (2981923710850).

Almost surely, 2^{11331310101211} is an apocalyptic number.

11331310101211 is a deficient number, since it is larger than the sum of its proper divisors (596384742189).

11331310101211 is an equidigital number, since it uses as much as digits as its factorization.

11331310101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596384742188.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11331310101211 its reverse (11210101313311), we get a palindrome (22541411414522).

The spelling of 11331310101211 in words is "eleven trillion, three hundred thirty-one billion, three hundred ten million, one hundred one thousand, two hundred eleven".