1323130014440 has 128 divisors (see below), whose sum is σ = 3395335980960. Its totient is φ = 459707940864.

The previous prime is 1323130014431. The next prime is 1323130014463. The reversal of 1323130014440 is 444100313231.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 227343961636 + 1095786052804 = 476806^2 + 1046798^2 .

It is a super-2 number, since 2×1323130014440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 31 ways as a sum of consecutive naturals, for example, 53354684 + ... + 53379476.

Almost surely, 2^{1323130014440} is an apocalyptic number.

1323130014440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323130014440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1697667990480).

1323130014440 is an abundant number, since it is smaller than the sum of its proper divisors (2072205966520).

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

1323130014440 is a wasteful number, since it uses less digits than its factorization.

1323130014440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30871 (or 30867 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1323130014440 its reverse (444100313231), we get a palindrome (1767230327671).

The spelling of 1323130014440 in words is "one trillion, three hundred twenty-three billion, one hundred thirty million, fourteen thousand, four hundred forty".