1112331212231 has 2 divisors, whose sum is σ = 1112331212232. Its totient is φ = 1112331212230.

The previous prime is 1112331212227. The next prime is 1112331212257. The reversal of 1112331212231 is 1322121332111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112331212231 - 2² = 1112331212227 is a prime.

It is a super-2 number, since 2×1112331212231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112331212197 and 1112331212206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112331212221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556165606115 + 556165606116.

It is an arithmetic number, because the mean of its divisors is an integer number (556165606116).

Almost surely, 2^{1112331212231} is an apocalyptic number.

1112331212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112331212231 is an equidigital number, since it uses as much as digits as its factorization.

1112331212231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

Adding to 1112331212231 its reverse (1322121332111), we get a palindrome (2434452544342).

The spelling of 1112331212231 in words is "one trillion, one hundred twelve billion, three hundred thirty-one million, two hundred twelve thousand, two hundred thirty-one".