1322312111321 has 16 divisors (see below), whose sum is σ = 1394485632000. Its totient is φ = 1251433096848.

The previous prime is 1322312111311. The next prime is 1322312111359. The reversal of 1322312111321 is 1231112132231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1322312111321 - 2³⁰ = 1321238369497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322312111311) 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, 12290 + ... + 1626276.

It is an arithmetic number, because the mean of its divisors is an integer number (87155352000).

Almost surely, 2^{1322312111321} is an apocalyptic number.

It is an amenable number.

1322312111321 is a deficient number, since it is larger than the sum of its proper divisors (72173520679).

1322312111321 is a wasteful number, since it uses less digits than its factorization.

1322312111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614388.

The product of its digits is 432, while the sum is 23.

Adding to 1322312111321 its reverse (1231112132231), we get a palindrome (2553424243552).

The spelling of 1322312111321 in words is "one trillion, three hundred twenty-two billion, three hundred twelve million, one hundred eleven thousand, three hundred twenty-one".