1331323020312 has 32 divisors (see below), whose sum is σ = 3503481633600. Its totient is φ = 420417795744.

The previous prime is 1331323020299. The next prime is 1331323020329. The reversal of 1331323020312 is 2130203231331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1459783558 + ... + 1459784469.

It is an arithmetic number, because the mean of its divisors is an integer number (109483801050).

Almost surely, 2^{1331323020312} is an apocalyptic number.

1331323020312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331323020312 is an abundant number, since it is smaller than the sum of its proper divisors (2172158613288).

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

1331323020312 is a wasteful number, since it uses less digits than its factorization.

1331323020312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919568055 (or 2919568051 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1331323020312 its reverse (2130203231331), we get a palindrome (3461526251643).

The spelling of 1331323020312 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, twenty thousand, three hundred twelve".