1311101543213 has 32 divisors (see below), whose sum is σ = 1731017122560. Its totient is φ = 961406300160.

The previous prime is 1311101543203. The next prime is 1311101543221. The reversal of 1311101543213 is 3123451011131.

It is a cyclic number.

It is not a de Polignac number, because 1311101543213 - 2¹⁸ = 1311101281069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311101543203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9788945 + ... + 9921977.

It is an arithmetic number, because the mean of its divisors is an integer number (54094285080).

Almost surely, 2^{1311101543213} is an apocalyptic number.

It is an amenable number.

1311101543213 is a deficient number, since it is larger than the sum of its proper divisors (419915579347).

1311101543213 is a wasteful number, since it uses less digits than its factorization.

1311101543213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140597.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 1311101543213 its reverse (3123451011131), we get a palindrome (4434552554344).

The spelling of 1311101543213 in words is "one trillion, three hundred eleven billion, one hundred one million, five hundred forty-three thousand, two hundred thirteen".