11591123352 has 32 divisors (see below), whose sum is σ = 29043247680. Its totient is φ = 3854982560.

The previous prime is 11591123351. The next prime is 11591123353. The reversal of 11591123352 is 25332119511.

It is an interprime number because it is at equal distance from previous prime (11591123351) and next prime (11591123353).

It is a super-2 number, since 2×11591123352² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11591123351) 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, 534474 + ... + 555737.

It is an arithmetic number, because the mean of its divisors is an integer number (907601490).

Almost surely, 2^11591123352 is an apocalyptic number.

11591123352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11591123352 is an abundant number, since it is smaller than the sum of its proper divisors (17452124328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11591123352 is a wasteful number, since it uses less digits than its factorization.

11591123352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090663 (or 1090659 counting only the distinct ones).

The product of its digits is 8100, while the sum is 33.

The spelling of 11591123352 in words is "eleven billion, five hundred ninety-one million, one hundred twenty-three thousand, three hundred fifty-two".