1311121041112 has 16 divisors (see below), whose sum is σ = 2458368261360. Its totient is φ = 655556171424.

The previous prime is 1311121041079. The next prime is 1311121041133. The reversal of 1311121041112 is 2111401211131.

It is a super-2 number, since 2×1311121041112² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311121041112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993133 + ... + 1899619.

It is an arithmetic number, because the mean of its divisors is an integer number (153648016335).

Almost surely, 2^{1311121041112} is an apocalyptic number.

It is an amenable number.

1311121041112 is a deficient number, since it is larger than the sum of its proper divisors (1147247220248).

1311121041112 is a wasteful number, since it uses less digits than its factorization.

1311121041112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087290 (or 1087286 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 1311121041112 its reverse (2111401211131), we get a palindrome (3422522252243).

The spelling of 1311121041112 in words is "one trillion, three hundred eleven billion, one hundred twenty-one million, forty-one thousand, one hundred twelve".