1111022321231 has 2 divisors, whose sum is σ = 1111022321232. Its totient is φ = 1111022321230.

The previous prime is 1111022321191. The next prime is 1111022321293. The reversal of 1111022321231 is 1321232201111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111022321231 - 2¹⁸ = 1111022059087 is a prime.

It is a super-2 number, since 2×1111022321231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111022321531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555511160615 + 555511160616.

It is an arithmetic number, because the mean of its divisors is an integer number (555511160616).

Almost surely, 2^{1111022321231} is an apocalyptic number.

1111022321231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111022321231 is an equidigital number, since it uses as much as digits as its factorization.

1111022321231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1111022321231 its reverse (1321232201111), we get a palindrome (2432254522342).

The spelling of 1111022321231 in words is "one trillion, one hundred eleven billion, twenty-two million, three hundred twenty-one thousand, two hundred thirty-one".