1320440030340 has 48 divisors (see below), whose sum is σ = 3705654099840. Its totient is φ = 351315244800.

The previous prime is 1320440030333. The next prime is 1320440030347. The reversal of 1320440030340 is 430300440231.

It is an interprime number because it is at equal distance from previous prime (1320440030333) and next prime (1320440030347).

It is a self number, because there is not a number n which added to its sum of digits gives 1320440030340.

It is not an unprimeable number, because it can be changed into a prime (1320440030347) 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 15 ways as a sum of consecutive naturals, for example, 25038961 + ... + 25091640.

It is an arithmetic number, because the mean of its divisors is an integer number (77201127080).

Almost surely, 2^{1320440030340} is an apocalyptic number.

1320440030340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320440030340 is an abundant number, since it is smaller than the sum of its proper divisors (2385214069500).

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

1320440030340 is a wasteful number, since it uses less digits than its factorization.

1320440030340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50131052 (or 50131050 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1320440030340 its reverse (430300440231), we get a palindrome (1750740470571).

The spelling of 1320440030340 in words is "one trillion, three hundred twenty billion, four hundred forty million, thirty thousand, three hundred forty".