11123120111001 has 16 divisors (see below), whose sum is σ = 14851843843200. Its totient is φ = 7404905743488.

The previous prime is 11123120110919. The next prime is 11123120111009. The reversal of 11123120111001 is 10011102132111.

It is not a de Polignac number, because 11123120111001 - 2¹⁴ = 11123120094617 is a prime.

It is a super-2 number, since 2×11123120111001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11123120111009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60297615 + ... + 60481803.

It is an arithmetic number, because the mean of its divisors is an integer number (928240240200).

Almost surely, 2^{11123120111001} is an apocalyptic number.

It is an amenable number.

11123120111001 is a deficient number, since it is larger than the sum of its proper divisors (3728723732199).

11123120111001 is a wasteful number, since it uses less digits than its factorization.

11123120111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212608.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 11123120111001 its reverse (10011102132111), we get a palindrome (21134222243112).

The spelling of 11123120111001 in words is "eleven trillion, one hundred twenty-three billion, one hundred twenty million, one hundred eleven thousand, one".