11381535375 has 32 divisors (see below), whose sum is σ = 21644433408. Its totient is φ = 5202986400.

The previous prime is 11381535371. The next prime is 11381535379. The reversal of 11381535375 is 57353518311.

11381535375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11381535371) and next prime (11381535379).

It is not a de Polignac number, because 11381535375 - 2² = 11381535371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381535371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165287 + ... + 2170536.

It is an arithmetic number, because the mean of its divisors is an integer number (676388544).

Almost surely, 2^11381535375 is an apocalyptic number.

11381535375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11381535375 is a deficient number, since it is larger than the sum of its proper divisors (10262898033).

11381535375 is an equidigital number, since it uses as much as digits as its factorization.

11381535375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335848 (or 4335838 counting only the distinct ones).

The product of its digits is 189000, while the sum is 42.

The spelling of 11381535375 in words is "eleven billion, three hundred eighty-one million, five hundred thirty-five thousand, three hundred seventy-five".