11122231123 has 2 divisors, whose sum is σ = 11122231124. Its totient is φ = 11122231122.

The previous prime is 11122231103. The next prime is 11122231189. The reversal of 11122231123 is 32113222111.

It is a weak prime.

It is an emirp because it is prime and its reverse (32113222111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11122231123 - 2⁹ = 11122230611 is a prime.

It is a super-2 number, since 2×11122231123² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11122231123.

It is not a weakly prime, because it can be changed into another prime (11122231103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561115561 + 5561115562.

It is an arithmetic number, because the mean of its divisors is an integer number (5561115562).

Almost surely, 2^11122231123 is an apocalyptic number.

11122231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122231123 is an equidigital number, since it uses as much as digits as its factorization.

11122231123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

Adding to 11122231123 its reverse (32113222111), we get a palindrome (43235453234).

The spelling of 11122231123 in words is "eleven billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred twenty-three".