1323131130000 has 150 divisors (see below), whose sum is σ = 4627180995294. Its totient is φ = 352834944000.

The previous prime is 1323131129987. The next prime is 1323131130001. The reversal of 1323131130000 is 311313231.

It is a happy number.

1323131130000 is a `hidden beast` number, since 1 + 323 + 1 + 311 + 30 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 568130017536 + 755001112464 = 753744^2 + 868908^2 .

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1323131130001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7260729 + ... + 7440728.

Almost surely, 2^{1323131130000} is an apocalyptic number.

1323131130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323131130000 is an abundant number, since it is smaller than the sum of its proper divisors (3304049865294).

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

1323131130000 is a wasteful number, since it uses less digits than its factorization.

1323131130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14701491 (or 14701467 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1323131130000 its reverse (311313231), we get a palindrome (1323442443231).

The spelling of 1323131130000 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-one million, one hundred thirty thousand".