1121331322013 has 4 divisors (see below), whose sum is σ = 1281521510880. Its totient is φ = 961141133148.

The previous prime is 1121331322003. The next prime is 1121331322021. The reversal of 1121331322013 is 3102231331211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1121331322013 - 2²⁴ = 1121314544797 is a prime.

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 1121331322013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121331322003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80095094423 + ... + 80095094436.

It is an arithmetic number, because the mean of its divisors is an integer number (320380377720).

Almost surely, 2^{1121331322013} is an apocalyptic number.

It is an amenable number.

1121331322013 is a deficient number, since it is larger than the sum of its proper divisors (160190188867).

1121331322013 is an equidigital number, since it uses as much as digits as its factorization.

1121331322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160190188866.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1121331322013 its reverse (3102231331211), we get a palindrome (4223562653224).

The spelling of 1121331322013 in words is "one trillion, one hundred twenty-one billion, three hundred thirty-one million, three hundred twenty-two thousand, thirteen".