1311552013141 has 4 divisors (see below), whose sum is σ = 1311564194572. Its totient is φ = 1311539831712.

The previous prime is 1311552013111. The next prime is 1311552013151. The reversal of 1311552013141 is 1413102551131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 811943364241 + 499608648900 = 901079^2 + 706830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311552013141 - 2¹⁵ = 1311551980373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311552013111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5927760 + ... + 6145033.

It is an arithmetic number, because the mean of its divisors is an integer number (327891048643).

Almost surely, 2^{1311552013141} is an apocalyptic number.

It is an amenable number.

1311552013141 is a deficient number, since it is larger than the sum of its proper divisors (12181431).

1311552013141 is a wasteful number, since it uses less digits than its factorization.

1311552013141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12181430.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 1311552013141 its reverse (1413102551131), we get a palindrome (2724654564272).

The spelling of 1311552013141 in words is "one trillion, three hundred eleven billion, five hundred fifty-two million, thirteen thousand, one hundred forty-one".