1123043222001 has 4 divisors (see below), whose sum is σ = 1497390962672. Its totient is φ = 748695481332.

The previous prime is 1123043221991. The next prime is 1123043222011. The reversal of 1123043222001 is 1002223403211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1123043221991) and next prime (1123043222011).

It is not a de Polignac number, because 1123043222001 - 2⁷ = 1123043221873 is a prime.

It is a super-2 number, since 2×1123043222001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1123043222011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187173870331 + ... + 187173870336.

It is an arithmetic number, because the mean of its divisors is an integer number (374347740668).

Almost surely, 2^{1123043222001} is an apocalyptic number.

It is an amenable number.

1123043222001 is a deficient number, since it is larger than the sum of its proper divisors (374347740671).

1123043222001 is an equidigital number, since it uses as much as digits as its factorization.

1123043222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374347740670.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1123043222001 its reverse (1002223403211), we get a palindrome (2125266625212).

The spelling of 1123043222001 in words is "one trillion, one hundred twenty-three billion, forty-three million, two hundred twenty-two thousand, one".