11523321155003 has 16 divisors (see below), whose sum is σ = 13767220047360. Its totient is φ = 9430419974976.

The previous prime is 11523321154913. The next prime is 11523321155023. The reversal of 11523321155003 is 30055112332511.

It is not a de Polignac number, because 11523321155003 - 2¹² = 11523321150907 is a prime.

It is a super-3 number, since 3×11523321155003³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523321155023) 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, 65335538 + ... + 65511671.

It is an arithmetic number, because the mean of its divisors is an integer number (860451252960).

Almost surely, 2^{11523321155003} is an apocalyptic number.

11523321155003 is a deficient number, since it is larger than the sum of its proper divisors (2243898892357).

11523321155003 is a wasteful number, since it uses less digits than its factorization.

11523321155003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130847786.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 11523321155003 its reverse (30055112332511), we get a palindrome (41578433487514).

The spelling of 11523321155003 in words is "eleven trillion, five hundred twenty-three billion, three hundred twenty-one million, one hundred fifty-five thousand, three".