1310432140240 has 20 divisors (see below), whose sum is σ = 3046754726244. Its totient is φ = 524172856064.

The previous prime is 1310432140211. The next prime is 1310432140289. The reversal of 1310432140240 is 420412340131.

It can be written as a sum of positive squares in 2 ways, for example, as 716244001344 + 594188138896 = 846312^2 + 770836^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8190200797 + ... + 8190200956.

Almost surely, 2^{1310432140240} is an apocalyptic number.

1310432140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310432140240 is an abundant number, since it is smaller than the sum of its proper divisors (1736322586004).

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

1310432140240 is a wasteful number, since it uses less digits than its factorization.

1310432140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16380401766 (or 16380401760 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1310432140240 its reverse (420412340131), we get a palindrome (1730844480371).

The spelling of 1310432140240 in words is "one trillion, three hundred ten billion, four hundred thirty-two million, one hundred forty thousand, two hundred forty".