1111201233011 has 4 divisors (see below), whose sum is σ = 1111203346224. Its totient is φ = 1111199119800.

The previous prime is 1111201232989. The next prime is 1111201233041. The reversal of 1111201233011 is 1103321021111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111201233011 is a prime.

It is a super-2 number, since 2×1111201233011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111201233041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419981 + ... + 1548801.

It is an arithmetic number, because the mean of its divisors is an integer number (277800836556).

Almost surely, 2^{1111201233011} is an apocalyptic number.

1111201233011 is a deficient number, since it is larger than the sum of its proper divisors (2113213).

1111201233011 is an equidigital number, since it uses as much as digits as its factorization.

1111201233011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113212.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1111201233011 its reverse (1103321021111), we get a palindrome (2214522254122).

The spelling of 1111201233011 in words is "one trillion, one hundred eleven billion, two hundred one million, two hundred thirty-three thousand, eleven".