1123211110873 has 2 divisors, whose sum is σ = 1123211110874. Its totient is φ = 1123211110872.

The previous prime is 1123211110843. The next prime is 1123211110891. The reversal of 1123211110873 is 3780111123211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1065379037584 + 57832073289 = 1032172^2 + 240483^2 .

It is an emirp because it is prime and its reverse (3780111123211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123211110873 - 2¹³ = 1123211102681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123211110843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561605555436 + 561605555437.

It is an arithmetic number, because the mean of its divisors is an integer number (561605555437).

Almost surely, 2^{1123211110873} is an apocalyptic number.

It is an amenable number.

1123211110873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123211110873 is an equidigital number, since it uses as much as digits as its factorization.

1123211110873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 1123211110873 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, one hundred ten thousand, eight hundred seventy-three".