1311423303140 has 24 divisors (see below), whose sum is σ = 2781256158072. Its totient is φ = 519375564800.

The previous prime is 1311423303067. The next prime is 1311423303161. The reversal of 1311423303140 is 413033241131.

It can be written as a sum of positive squares in 4 ways, for example, as 578728390564 + 732694912576 = 760742^2 + 855976^2 .

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, 324607709 + ... + 324611748.

It is an arithmetic number, because the mean of its divisors is an integer number (115885673253).

Almost surely, 2^{1311423303140} is an apocalyptic number.

1311423303140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311423303140 is an abundant number, since it is smaller than the sum of its proper divisors (1469832854932).

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

1311423303140 is a wasteful number, since it uses less digits than its factorization.

1311423303140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649219567 (or 649219565 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1311423303140 its reverse (413033241131), we get a palindrome (1724456544271).

The spelling of 1311423303140 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred three thousand, one hundred forty".