11250352121 has 4 divisors (see below), whose sum is σ = 11286296052. Its totient is φ = 11214408192.

The previous prime is 11250352037. The next prime is 11250352147. The reversal of 11250352121 is 12125305211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2388765625 + 8861586496 = 48875^2 + 94136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11250352121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11250352621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17971496 + ... + 17972121.

It is an arithmetic number, because the mean of its divisors is an integer number (2821574013).

Almost surely, 2^11250352121 is an apocalyptic number.

It is an amenable number.

11250352121 is a deficient number, since it is larger than the sum of its proper divisors (35943931).

11250352121 is an equidigital number, since it uses as much as digits as its factorization.

11250352121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35943930.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 11250352121 its reverse (12125305211), we get a palindrome (23375657332).

The spelling of 11250352121 in words is "eleven billion, two hundred fifty million, three hundred fifty-two thousand, one hundred twenty-one".