1310233515440 has 20 divisors (see below), whose sum is σ = 3046292923584. Its totient is φ = 524093406144.

The previous prime is 1310233515413. The next prime is 1310233515517. The reversal of 1310233515440 is 445153320131.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1310233515397 and 1310233515406.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8188959392 + ... + 8188959551.

Almost surely, 2^{1310233515440} is an apocalyptic number.

1310233515440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310233515440 is an abundant number, since it is smaller than the sum of its proper divisors (1736059408144).

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

1310233515440 is a wasteful number, since it uses less digits than its factorization.

1310233515440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377918956 (or 16377918950 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1310233515440 its reverse (445153320131), we get a palindrome (1755386835571).

It can be divided in two parts, 131023 and 3515440, that added together give a palindrome (3646463).

The spelling of 1310233515440 in words is "one trillion, three hundred ten billion, two hundred thirty-three million, five hundred fifteen thousand, four hundred forty".