1311535424240 has 40 divisors (see below), whose sum is σ = 3050845656000. Its totient is φ = 524351667456.

The previous prime is 1311535424239. The next prime is 1311535424273. The reversal of 1311535424240 is 424245351131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1311535424240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3940679 + ... + 4260518.

It is an arithmetic number, because the mean of its divisors is an integer number (76271141400).

Almost surely, 2^{1311535424240} is an apocalyptic number.

1311535424240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311535424240 is an abundant number, since it is smaller than the sum of its proper divisors (1739310231760).

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

1311535424240 is a wasteful number, since it uses less digits than its factorization.

1311535424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203209 (or 8203203 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 1311535424240 in words is "one trillion, three hundred eleven billion, five hundred thirty-five million, four hundred twenty-four thousand, two hundred forty".