11543723387 has 8 divisors (see below), whose sum is σ = 13409103072. Its totient is φ = 9732412800.

The previous prime is 11543723377. The next prime is 11543723413. The reversal of 11543723387 is 78332734511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11543723387 - 2¹⁰ = 11543722363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11543723357) 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 7 ways as a sum of consecutive naturals, for example, 13516814 + ... + 13517667.

It is an arithmetic number, because the mean of its divisors is an integer number (1676137884).

Almost surely, 2^11543723387 is an apocalyptic number.

11543723387 is a deficient number, since it is larger than the sum of its proper divisors (1865379685).

11543723387 is an equidigital number, since it uses as much as digits as its factorization.

11543723387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27034549.

The product of its digits is 423360, while the sum is 44.

The spelling of 11543723387 in words is "eleven billion, five hundred forty-three million, seven hundred twenty-three thousand, three hundred eighty-seven".