1131320311222 has 4 divisors (see below), whose sum is σ = 1696980466836. Its totient is φ = 565660155610.

The previous prime is 1131320311201. The next prime is 1131320311241. The reversal of 1131320311222 is 2221130231311.

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

It is a junction number, because it is equal to n+sod(n) for n = 1131320311193 and 1131320311202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282830077804 + ... + 282830077807.

It is an arithmetic number, because the mean of its divisors is an integer number (424245116709).

Almost surely, 2^{1131320311222} is an apocalyptic number.

1131320311222 is a deficient number, since it is larger than the sum of its proper divisors (565660155614).

1131320311222 is an equidigital number, since it uses as much as digits as its factorization.

1131320311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565660155613.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1131320311222 its reverse (2221130231311), we get a palindrome (3352450542533).

The spelling of 1131320311222 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, three hundred eleven thousand, two hundred twenty-two".