11123120001 has 24 divisors (see below), whose sum is σ = 17423023104. Its totient is φ = 6293128800.

The previous prime is 11123119961. The next prime is 11123120059. The reversal of 11123120001 is 10002132111.

It is not a de Polignac number, because 11123120001 - 2¹⁰ = 11123118977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11123120101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359745 + ... + 389438.

It is an arithmetic number, because the mean of its divisors is an integer number (725959296).

Almost surely, 2^11123120001 is an apocalyptic number.

It is an amenable number.

11123120001 is a deficient number, since it is larger than the sum of its proper divisors (6299903103).

11123120001 is a wasteful number, since it uses less digits than its factorization.

11123120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749301 (or 749294 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11123120001 its reverse (10002132111), we get a palindrome (21125252112).

The spelling of 11123120001 in words is "eleven billion, one hundred twenty-three million, one hundred twenty thousand, one".