11531045043222 has 32 divisors (see below), whose sum is σ = 24276615649920. Its totient is φ = 3641272943040.

The previous prime is 11531045043191. The next prime is 11531045043227. The reversal of 11531045043222 is 22234054013511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531045043227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2319322 + ... + 5333042.

It is an arithmetic number, because the mean of its divisors is an integer number (758644239060).

Almost surely, 2^{11531045043222} is an apocalyptic number.

11531045043222 is an abundant number, since it is smaller than the sum of its proper divisors (12745570606698).

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

11531045043222 is a wasteful number, since it uses less digits than its factorization.

11531045043222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047308.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 11531045043222 its reverse (22234054013511), we get a palindrome (33765099056733).

The spelling of 11531045043222 in words is "eleven trillion, five hundred thirty-one billion, forty-five million, forty-three thousand, two hundred twenty-two".