11121303230231 has 4 divisors (see below), whose sum is σ = 11123620656000. Its totient is φ = 11118985804464.

The previous prime is 11121303230209. The next prime is 11121303230243. The reversal of 11121303230231 is 13203230312111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121303230231 is a prime.

It is a super-2 number, since 2×11121303230231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121303230197 and 11121303230206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121300230231) 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, 1158705686 + ... + 1158715283.

It is an arithmetic number, because the mean of its divisors is an integer number (2780905164000).

Almost surely, 2^{11121303230231} is an apocalyptic number.

11121303230231 is a deficient number, since it is larger than the sum of its proper divisors (2317425769).

11121303230231 is an equidigital number, since it uses as much as digits as its factorization.

11121303230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317425768.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11121303230231 its reverse (13203230312111), we get a palindrome (24324533542342).

The spelling of 11121303230231 in words is "eleven trillion, one hundred twenty-one billion, three hundred three million, two hundred thirty thousand, two hundred thirty-one".