1121233211011 has 8 divisors (see below), whose sum is σ = 1140582783600. Its totient is φ = 1101895159200.

The previous prime is 1121233211009. The next prime is 1121233211023. The reversal of 1121233211011 is 1101123321211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121233211011 - 2¹ = 1121233211009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121233211011.

It is not an unprimeable number, because it can be changed into a prime (1127233211011) 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 7 ways as a sum of consecutive naturals, for example, 2683756 + ... + 3073273.

It is an arithmetic number, because the mean of its divisors is an integer number (142572847950).

Almost surely, 2^{1121233211011} is an apocalyptic number.

1121233211011 is a deficient number, since it is larger than the sum of its proper divisors (19349572589).

1121233211011 is an equidigital number, since it uses as much as digits as its factorization.

1121233211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760389.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1121233211011 its reverse (1101123321211), we get a palindrome (2222356532222).

The spelling of 1121233211011 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred eleven thousand, eleven".