11131834550 has 24 divisors (see below), whose sum is σ = 20766683496. Its totient is φ = 4439514240.

The previous prime is 11131834531. The next prime is 11131834573. The reversal of 11131834550 is 5543813111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313472 + ... + 347171.

It is an arithmetic number, because the mean of its divisors is an integer number (865278479).

Almost surely, 2^11131834550 is an apocalyptic number.

11131834550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131834550 is a deficient number, since it is larger than the sum of its proper divisors (9634848946).

11131834550 is a wasteful number, since it uses less digits than its factorization.

11131834550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660992 (or 660987 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 11131834550 in words is "eleven billion, one hundred thirty-one million, eight hundred thirty-four thousand, five hundred fifty".