11311131221202 has 16 divisors (see below), whose sum is σ = 22632051419712. Its totient is φ = 3768745577520.

The previous prime is 11311131221123. The next prime is 11311131221227. The reversal of 11311131221202 is 20212213111311.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 407859033 + ... + 407886764.

It is an arithmetic number, because the mean of its divisors is an integer number (1414503213732).

Almost surely, 2^{11311131221202} is an apocalyptic number.

11311131221202 is an abundant number, since it is smaller than the sum of its proper divisors (11320920198510).

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

11311131221202 is a wasteful number, since it uses less digits than its factorization.

11311131221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815748113.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 11311131221202 its reverse (20212213111311), we get a palindrome (31523344332513).

The spelling of 11311131221202 in words is "eleven trillion, three hundred eleven billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred two".