11331121201326 has 24 divisors (see below), whose sum is σ = 24594369663240. Its totient is φ = 3770331621936.

The previous prime is 11331121201319. The next prime is 11331121201327. The reversal of 11331121201326 is 62310212113311.

11331121201326 is a `hidden beast` number, since 1 + 1 + 3 + 311 + 2 + 1 + 20 + 1 + 326 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11331121201326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331121201327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559054461 + ... + 559074728.

It is an arithmetic number, because the mean of its divisors is an integer number (1024765402635).

Almost surely, 2^{11331121201326} is an apocalyptic number.

11331121201326 is an abundant number, since it is smaller than the sum of its proper divisors (13263248461914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11331121201326 is a wasteful number, since it uses less digits than its factorization.

11331121201326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118129760 (or 1118129757 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 11331121201326 its reverse (62310212113311), we get a palindrome (73641333314637).

The spelling of 11331121201326 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-one million, two hundred one thousand, three hundred twenty-six".