11110231212231 has 4 divisors (see below), whose sum is σ = 14813641616312. Its totient is φ = 7406820808152.

The previous prime is 11110231212203. The next prime is 11110231212259. The reversal of 11110231212231 is 13221213201111.

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

It is an interprime number because it is at equal distance from previous prime (11110231212203) and next prime (11110231212259).

It is not a de Polignac number, because 11110231212231 - 2⁹ = 11110231211719 is a prime.

It is a super-2 number, since 2×11110231212231² (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 = 11110231212198 and 11110231212207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110231212281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851705202036 + ... + 1851705202041.

It is an arithmetic number, because the mean of its divisors is an integer number (3703410404078).

Almost surely, 2^{11110231212231} is an apocalyptic number.

11110231212231 is a deficient number, since it is larger than the sum of its proper divisors (3703410404081).

11110231212231 is an equidigital number, since it uses as much as digits as its factorization.

11110231212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703410404080.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 11110231212231 its reverse (13221213201111), we get a palindrome (24331444413342).

The spelling of 11110231212231 in words is "eleven trillion, one hundred ten billion, two hundred thirty-one million, two hundred twelve thousand, two hundred thirty-one".