1123146205611 has 4 divisors (see below), whose sum is σ = 1497528274152. Its totient is φ = 748764137072.

The previous prime is 1123146205549. The next prime is 1123146205661. The reversal of 1123146205611 is 1165026413211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123146205611 - 2⁶ = 1123146205547 is a prime.

It is a super-2 number, since 2×1123146205611² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123146205661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187191034266 + ... + 187191034271.

It is an arithmetic number, because the mean of its divisors is an integer number (374382068538).

Almost surely, 2^{1123146205611} is an apocalyptic number.

1123146205611 is a deficient number, since it is larger than the sum of its proper divisors (374382068541).

1123146205611 is an equidigital number, since it uses as much as digits as its factorization.

1123146205611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374382068540.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 1123146205611 in words is "one trillion, one hundred twenty-three billion, one hundred forty-six million, two hundred five thousand, six hundred eleven".