1123020111167 has 2 divisors, whose sum is σ = 1123020111168. Its totient is φ = 1123020111166.

The previous prime is 1123020111137. The next prime is 1123020111247. The reversal of 1123020111167 is 7611110203211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123020111167 - 2²⁰ = 1123019062591 is a prime.

It is a super-2 number, since 2×1123020111167² (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 (1123020111137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561510055583 + 561510055584.

It is an arithmetic number, because the mean of its divisors is an integer number (561510055584).

Almost surely, 2^{1123020111167} is an apocalyptic number.

1123020111167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123020111167 is an equidigital number, since it uses as much as digits as its factorization.

1123020111167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 1123020111167 its reverse (7611110203211), we get a palindrome (8734130314378).

The spelling of 1123020111167 in words is "one trillion, one hundred twenty-three billion, twenty million, one hundred eleven thousand, one hundred sixty-seven".