1123012231123 has 2 divisors, whose sum is σ = 1123012231124. Its totient is φ = 1123012231122.

The previous prime is 1123012231109. The next prime is 1123012231169. The reversal of 1123012231123 is 3211322103211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123012231123 - 2⁹ = 1123012230611 is a prime.

It is a super-2 number, since 2×1123012231123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123012231094 and 1123012231103.

It is not a weakly prime, because it can be changed into another prime (1123012231193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561506115561 + 561506115562.

It is an arithmetic number, because the mean of its divisors is an integer number (561506115562).

Almost surely, 2^{1123012231123} is an apocalyptic number.

1123012231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123012231123 is an equidigital number, since it uses as much as digits as its factorization.

1123012231123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1123012231123 its reverse (3211322103211), we get a palindrome (4334334334334).

The spelling of 1123012231123 in words is "one trillion, one hundred twenty-three billion, twelve million, two hundred thirty-one thousand, one hundred twenty-three".