1311641016025 has 12 divisors (see below), whose sum is σ = 1627227147052. Its totient is φ = 1048801659840.

The previous prime is 1311641015989. The next prime is 1311641016031. The reversal of 1311641016025 is 5206101461131.

It can be written as a sum of positive squares in 6 ways, for example, as 11238332121 + 1300402683904 = 106011^2 + 1140352^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1311641016025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12726474 + ... + 12829123.

Almost surely, 2^{1311641016025} is an apocalyptic number.

It is an amenable number.

1311641016025 is a deficient number, since it is larger than the sum of its proper divisors (315586131027).

1311641016025 is a wasteful number, since it uses less digits than its factorization.

1311641016025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25557660 (or 25557655 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 1311641016025 its reverse (5206101461131), we get a palindrome (6517742477156).

The spelling of 1311641016025 in words is "one trillion, three hundred eleven billion, six hundred forty-one million, sixteen thousand, twenty-five".