1311552013135 has 48 divisors (see below), whose sum is σ = 1971855791136. Its totient is φ = 830083306752.

The previous prime is 1311552013111. The next prime is 1311552013151. The reversal of 1311552013135 is 5313102551131.

It is not a de Polignac number, because 1311552013135 - 2¹⁵ = 1311551980367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311552013097 and 1311552013106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47210109 + ... + 47237881.

It is an arithmetic number, because the mean of its divisors is an integer number (41080328982).

Almost surely, 2^{1311552013135} is an apocalyptic number.

1311552013135 is a deficient number, since it is larger than the sum of its proper divisors (660303778001).

1311552013135 is a wasteful number, since it uses less digits than its factorization.

1311552013135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42632 (or 42625 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 31.

Adding to 1311552013135 its reverse (5313102551131), we get a palindrome (6624654564266).

The spelling of 1311552013135 in words is "one trillion, three hundred eleven billion, five hundred fifty-two million, thirteen thousand, one hundred thirty-five".