11250531104521 has 4 divisors (see below), whose sum is σ = 11250539494912. Its totient is φ = 11250522714132.

The previous prime is 11250531104489. The next prime is 11250531104563. The reversal of 11250531104521 is 12540113505211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11250531104521 - 2⁵ = 11250531104489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11250531104591) 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, 1682025 + ... + 5032918.

It is an arithmetic number, because the mean of its divisors is an integer number (2812634873728).

Almost surely, 2^{11250531104521} is an apocalyptic number.

It is an amenable number.

11250531104521 is a deficient number, since it is larger than the sum of its proper divisors (8390391).

11250531104521 is an equidigital number, since it uses as much as digits as its factorization.

11250531104521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8390390.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 11250531104521 its reverse (12540113505211), we get a palindrome (23790644609732).

The spelling of 11250531104521 in words is "eleven trillion, two hundred fifty billion, five hundred thirty-one million, one hundred four thousand, five hundred twenty-one".