1121011011011 has 8 divisors (see below), whose sum is σ = 1125718646448. Its totient is φ = 1116303840000.

The previous prime is 1121011011007. The next prime is 1121011011023. The reversal of 1121011011011 is 1101101101211.

It is a happy number.

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 1121011011011 - 2² = 1121011011007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121011010983 and 1121011011001.

It is not an unprimeable number, because it can be changed into a prime (1121011011031) 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, 5238311 + ... + 5448111.

It is an arithmetic number, because the mean of its divisors is an integer number (140714830806).

Almost surely, 2^{1121011011011} is an apocalyptic number.

1121011011011 is a deficient number, since it is larger than the sum of its proper divisors (4707635437).

1121011011011 is a wasteful number, since it uses less digits than its factorization.

1121011011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232213.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1121011011011 its reverse (1101101101211), we get a palindrome (2222112112222).

The spelling of 1121011011011 in words is "one trillion, one hundred twenty-one billion, eleven million, eleven thousand, eleven".