11445053521 has 8 divisors (see below), whose sum is σ = 12510540000. Its totient is φ = 10383738240.

The previous prime is 11445053509. The next prime is 11445053533. The reversal of 11445053521 is 12535054411.

It is an interprime number because it is at equal distance from previous prime (11445053509) and next prime (11445053533).

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 11445053521 - 2⁷ = 11445053393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11445050521) 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, 1037056 + ... + 1048033.

It is an arithmetic number, because the mean of its divisors is an integer number (1563817500).

Almost surely, 2^11445053521 is an apocalyptic number.

11445053521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11445053521 is a deficient number, since it is larger than the sum of its proper divisors (1065486479).

11445053521 is a wasteful number, since it uses less digits than its factorization.

11445053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085599.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 11445053521 in words is "eleven billion, four hundred forty-five million, fifty-three thousand, five hundred twenty-one".