11201522123 has 12 divisors (see below), whose sum is σ = 12847742544. Its totient is φ = 9740451600.

The previous prime is 11201522093. The next prime is 11201522131. The reversal of 11201522123 is 32122510211.

It is not a de Polignac number, because 11201522123 - 2¹⁰ = 11201521099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201522095 and 11201522104.

It is not an unprimeable number, because it can be changed into a prime (11201522623) 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 11 ways as a sum of consecutive naturals, for example, 2009708 + ... + 2015273.

It is an arithmetic number, because the mean of its divisors is an integer number (1070645212).

Almost surely, 2^11201522123 is an apocalyptic number.

11201522123 is a deficient number, since it is larger than the sum of its proper divisors (1646220421).

11201522123 is a wasteful number, since it uses less digits than its factorization.

11201522123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025026 (or 4025015 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The spelling of 11201522123 in words is "eleven billion, two hundred one million, five hundred twenty-two thousand, one hundred twenty-three".