11291884523 has 12 divisors (see below), whose sum is σ = 11916907248. Its totient is φ = 10679401920.

The previous prime is 11291884519. The next prime is 11291884531. The reversal of 11291884523 is 32548819211.

It is not a de Polignac number, because 11291884523 - 2² = 11291884519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11291884543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151193 + ... + 213173.

It is an arithmetic number, because the mean of its divisors is an integer number (993075604).

Almost surely, 2^11291884523 is an apocalyptic number.

11291884523 is a deficient number, since it is larger than the sum of its proper divisors (625022725).

11291884523 is an frugal number, since it uses more digits than its factorization.

11291884523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62182 (or 62093 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The spelling of 11291884523 in words is "eleven billion, two hundred ninety-one million, eight hundred eighty-four thousand, five hundred twenty-three".