11250050021 has 8 divisors (see below), whose sum is σ = 12910997760. Its totient is φ = 9602551728.

The previous prime is 11250050003. The next prime is 11250050047. The reversal of 11250050021 is 12005005211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11250050021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11250050521) 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, 3360566 + ... + 3363911.

It is an arithmetic number, because the mean of its divisors is an integer number (1613874720).

Almost surely, 2^11250050021 is an apocalyptic number.

It is an amenable number.

11250050021 is a deficient number, since it is larger than the sum of its proper divisors (1660947739).

11250050021 is an equidigital number, since it uses as much as digits as its factorization.

11250050021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724723.

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 11250050021 its reverse (12005005211), we get a palindrome (23255055232).

The spelling of 11250050021 in words is "eleven billion, two hundred fifty million, fifty thousand, twenty-one".