11888380133 has 4 divisors (see below), whose sum is σ = 13586720160. Its totient is φ = 10190040108.

The previous prime is 11888380117. The next prime is 11888380157. The reversal of 11888380133 is 33108388811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11888380133 - 2⁴ = 11888380117 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 (11888380183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849170003 + ... + 849170016.

It is an arithmetic number, because the mean of its divisors is an integer number (3396680040).

Almost surely, 2^11888380133 is an apocalyptic number.

It is an amenable number.

11888380133 is a deficient number, since it is larger than the sum of its proper divisors (1698340027).

11888380133 is an equidigital number, since it uses as much as digits as its factorization.

11888380133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698340026.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 11888380133 in words is "eleven billion, eight hundred eighty-eight million, three hundred eighty thousand, one hundred thirty-three".