1311200111102 has 32 divisors (see below), whose sum is σ = 2275476235200. Its totient is φ = 555030355968.

The previous prime is 1311200111047. The next prime is 1311200111113. The reversal of 1311200111102 is 2011110021131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591158 + ... + 1723910.

It is an arithmetic number, because the mean of its divisors is an integer number (71108632350).

Almost surely, 2^{1311200111102} is an apocalyptic number.

1311200111102 is a deficient number, since it is larger than the sum of its proper divisors (964276124098).

1311200111102 is a wasteful number, since it uses less digits than its factorization.

1311200111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133780.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1311200111102 its reverse (2011110021131), we get a palindrome (3322310132233).

The spelling of 1311200111102 in words is "one trillion, three hundred eleven billion, two hundred million, one hundred eleven thousand, one hundred two".