11451120303123 has 24 divisors (see below), whose sum is σ = 16614646074000. Its totient is φ = 7599897206784.

The previous prime is 11451120303083. The next prime is 11451120303169. The reversal of 11451120303123 is 32130302115411.

11451120303123 is a `hidden beast` number, since 1 + 1 + 4 + 511 + 20 + 3 + 0 + 3 + 123 = 666.

It is not a de Polignac number, because 11451120303123 - 2¹⁸ = 11451120040979 is a prime.

It is a super-2 number, since 2×11451120303123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11451120304123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2472823 + ... + 5386751.

It is an arithmetic number, because the mean of its divisors is an integer number (692276919750).

Almost surely, 2^{11451120303123} is an apocalyptic number.

11451120303123 is a deficient number, since it is larger than the sum of its proper divisors (5163525770877).

11451120303123 is a wasteful number, since it uses less digits than its factorization.

11451120303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915891 (or 2915888 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 11451120303123 its reverse (32130302115411), we get a palindrome (43581422418534).

The spelling of 11451120303123 in words is "eleven trillion, four hundred fifty-one billion, one hundred twenty million, three hundred three thousand, one hundred twenty-three".