1121131201311 has 12 divisors (see below), whose sum is σ = 1766630984040. Its totient is φ = 679473455280.

The previous prime is 1121131201243. The next prime is 1121131201319. The reversal of 1121131201311 is 1131021311211.

1121131201311 is a `hidden beast` number, since 1 + 1 + 21 + 131 + 201 + 311 = 666.

It is not a de Polignac number, because 1121131201311 - 2¹⁷ = 1121131070239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121131201319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5662278696 + ... + 5662278893.

It is an arithmetic number, because the mean of its divisors is an integer number (147219248670).

Almost surely, 2^{1121131201311} is an apocalyptic number.

1121131201311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121131201311 is a deficient number, since it is larger than the sum of its proper divisors (645499782729).

1121131201311 is a wasteful number, since it uses less digits than its factorization.

1121131201311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324557606 (or 11324557603 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1121131201311 its reverse (1131021311211), we get a palindrome (2252152512522).

The spelling of 1121131201311 in words is "one trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred one thousand, three hundred eleven".