11503370727 has 12 divisors (see below), whose sum is σ = 16618792320. Its totient is φ = 7667615808.

The previous prime is 11503370657. The next prime is 11503370731. The reversal of 11503370727 is 72707330511.

11503370727 is a `hidden beast` number, since 11 + 503 + 3 + 70 + 72 + 7 = 666.

It is not a de Polignac number, because 11503370727 - 2²⁰ = 11502322151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11503370691 and 11503370700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503370027) 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, 50418 + ... + 159839.

It is an arithmetic number, because the mean of its divisors is an integer number (1384899360).

Almost surely, 2^11503370727 is an apocalyptic number.

11503370727 is a deficient number, since it is larger than the sum of its proper divisors (5115421593).

11503370727 is a wasteful number, since it uses less digits than its factorization.

11503370727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216342 (or 216339 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The spelling of 11503370727 in words is "eleven billion, five hundred three million, three hundred seventy thousand, seven hundred twenty-seven".