1310231304240 has 80 divisors (see below), whose sum is σ = 4087587969888. Its totient is φ = 347169558528.

The previous prime is 1310231304209. The next prime is 1310231304293. The reversal of 1310231304240 is 424031320131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1310231304240² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1310231304240.

It is an unprimeable number.

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, 17348617 + ... + 17423976.

Almost surely, 2^{1310231304240} is an apocalyptic number.

1310231304240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310231304240 is an abundant number, since it is smaller than the sum of its proper divisors (2777356665648).

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

1310231304240 is a wasteful number, since it uses less digits than its factorization.

1310231304240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34772766 (or 34772760 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1310231304240 its reverse (424031320131), we get a palindrome (1734262624371).

The spelling of 1310231304240 in words is "one trillion, three hundred ten billion, two hundred thirty-one million, three hundred four thousand, two hundred forty".