11886120391 has 8 divisors (see below), whose sum is σ = 12051632304. Its totient is φ = 11720681280.

The previous prime is 11886120317. The next prime is 11886120403. The reversal of 11886120391 is 19302168811.

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 11886120391 - 2¹⁵ = 11886087623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11886121391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366756 + ... + 397846.

It is an arithmetic number, because the mean of its divisors is an integer number (1506454038).

Almost surely, 2^11886120391 is an apocalyptic number.

11886120391 is a deficient number, since it is larger than the sum of its proper divisors (165511913).

11886120391 is an equidigital number, since it uses as much as digits as its factorization.

11886120391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36401.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 11886120391 in words is "eleven billion, eight hundred eighty-six million, one hundred twenty thousand, three hundred ninety-one".