1311023111322 has 8 divisors (see below), whose sum is σ = 2622046222656. Its totient is φ = 437007703772.

The previous prime is 1311023111311. The next prime is 1311023111329. The reversal of 1311023111322 is 2231113201131.

It is a sphenic number, since it is the product of 3 distinct primes.

1311023111322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1311023111329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109251925938 + ... + 109251925949.

It is an arithmetic number, because the mean of its divisors is an integer number (327755777832).

Almost surely, 2^{1311023111322} is an apocalyptic number.

1311023111322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1311023111322 is a wasteful number, since it uses less digits than its factorization.

1311023111322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218503851892.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1311023111322 its reverse (2231113201131), we get a palindrome (3542136312453).

The spelling of 1311023111322 in words is "one trillion, three hundred eleven billion, twenty-three million, one hundred eleven thousand, three hundred twenty-two".