1123153220867 has 2 divisors, whose sum is σ = 1123153220868. Its totient is φ = 1123153220866.

The previous prime is 1123153220851. The next prime is 1123153220869. The reversal of 1123153220867 is 7680223513211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123153220867 - 2⁴ = 1123153220851 is a prime.

It is a super-2 number, since 2×1123153220867² (a number of 25 digits) contains 22 as substring.

Together with 1123153220869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1123153220869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561576610433 + 561576610434.

It is an arithmetic number, because the mean of its divisors is an integer number (561576610434).

Almost surely, 2^{1123153220867} is an apocalyptic number.

1123153220867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123153220867 is an equidigital number, since it uses as much as digits as its factorization.

1123153220867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 1123153220867 in words is "one trillion, one hundred twenty-three billion, one hundred fifty-three million, two hundred twenty thousand, eight hundred sixty-seven".