1310244140040 has 64 divisors (see below), whose sum is σ = 4288071735360. Its totient is φ = 317634942720.

The previous prime is 1310244139913. The next prime is 1310244140041. The reversal of 1310244140040 is 400414420131.

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

It is not an unprimeable number, because it can be changed into a prime (1310244140041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496303279 + ... + 496305918.

It is an arithmetic number, because the mean of its divisors is an integer number (67001120865).

Almost surely, 2^{1310244140040} is an apocalyptic number.

1310244140040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310244140040 is an abundant number, since it is smaller than the sum of its proper divisors (2977827595320).

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

1310244140040 is a wasteful number, since it uses less digits than its factorization.

1310244140040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992609222 (or 992609218 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1310244140040 its reverse (400414420131), we get a palindrome (1710658560171).

The spelling of 1310244140040 in words is "one trillion, three hundred ten billion, two hundred forty-four million, one hundred forty thousand, forty".