1121230021011 has 32 divisors (see below), whose sum is σ = 1600703136000. Its totient is φ = 696021258240.

The previous prime is 1121230020979. The next prime is 1121230021019. The reversal of 1121230021011 is 1101200321211.

It is not a de Polignac number, because 1121230021011 - 2⁵ = 1121230020979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121230021019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1387791 + ... + 2041671.

It is an arithmetic number, because the mean of its divisors is an integer number (50021973000).

Almost surely, 2^{1121230021011} is an apocalyptic number.

1121230021011 is a deficient number, since it is larger than the sum of its proper divisors (479473114989).

1121230021011 is a wasteful number, since it uses less digits than its factorization.

1121230021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654419.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1121230021011 its reverse (1101200321211), we get a palindrome (2222430342222).

The spelling of 1121230021011 in words is "one trillion, one hundred twenty-one billion, two hundred thirty million, twenty-one thousand, eleven".