11331212122331 has 4 divisors (see below), whose sum is σ = 11335379544000. Its totient is φ = 11327044700664.

The previous prime is 11331212122319. The next prime is 11331212122337. The reversal of 11331212122331 is 13322121213311.

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 11331212122331 - 2⁶ = 11331212122267 is a prime.

It is a super-2 number, since 2×11331212122331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11331212122331.

It is not an unprimeable number, because it can be changed into a prime (11331212122337) 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, 2083706756 + ... + 2083712193.

It is an arithmetic number, because the mean of its divisors is an integer number (2833844886000).

Almost surely, 2^{11331212122331} is an apocalyptic number.

11331212122331 is a deficient number, since it is larger than the sum of its proper divisors (4167421669).

11331212122331 is an equidigital number, since it uses as much as digits as its factorization.

11331212122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167421668.

The product of its digits is 1296, while the sum is 26.

Adding to 11331212122331 its reverse (13322121213311), we get a palindrome (24653333335642).

The spelling of 11331212122331 in words is "eleven trillion, three hundred thirty-one billion, two hundred twelve million, one hundred twenty-two thousand, three hundred thirty-one".