11551532153103 has 80 divisors (see below), whose sum is σ = 18651579937056. Its totient is φ = 7097592453120.

The previous prime is 11551532153093. The next prime is 11551532153111. The reversal of 11551532153103 is 30135123515511.

11551532153103 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 1 + 532 + 15 + 3 + 103 = 666.

It is not a de Polignac number, because 11551532153103 - 2⁴ = 11551532153087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551532153123) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 37871200 + ... + 38175002.

Almost surely, 2^{11551532153103} is an apocalyptic number.

11551532153103 is a deficient number, since it is larger than the sum of its proper divisors (7100047783953).

11551532153103 is a wasteful number, since it uses less digits than its factorization.

11551532153103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304406 (or 304397 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

Adding to 11551532153103 its reverse (30135123515511), we get a palindrome (41686655668614).

The spelling of 11551532153103 in words is "eleven trillion, five hundred fifty-one billion, five hundred thirty-two million, one hundred fifty-three thousand, one hundred three".