11451123005055 has 16 divisors (see below), whose sum is σ = 18330880543584. Its totient is φ = 6104237690880.

The previous prime is 11451123005033. The next prime is 11451123005059. The reversal of 11451123005055 is 55050032115411.

It is a happy number.

It is not a de Polignac number, because 11451123005055 - 2¹¹ = 11451123003007 is a prime.

It is a super-2 number, since 2×11451123005055² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451123005059) 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, 189213226 + ... + 189273735.

It is an arithmetic number, because the mean of its divisors is an integer number (1145680033974).

Almost surely, 2^{11451123005055} is an apocalyptic number.

11451123005055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11451123005055 is a deficient number, since it is larger than the sum of its proper divisors (6879757538529).

11451123005055 is a wasteful number, since it uses less digits than its factorization.

11451123005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378488986.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 11451123005055 in words is "eleven trillion, four hundred fifty-one billion, one hundred twenty-three million, five thousand, fifty-five".