1123111323211 has 8 divisors (see below), whose sum is σ = 1138976619264. Its totient is φ = 1107247328040.

The previous prime is 1123111323193. The next prime is 1123111323259. The reversal of 1123111323211 is 1123231113211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123111323211 - 2¹⁷ = 1123111192139 is a prime.

It is a super-2 number, since 2×1123111323211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123111023211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484266 + ... + 2109328.

It is an arithmetic number, because the mean of its divisors is an integer number (142372077408).

Almost surely, 2^{1123111323211} is an apocalyptic number.

1123111323211 is a deficient number, since it is larger than the sum of its proper divisors (15865296053).

1123111323211 is an equidigital number, since it uses as much as digits as its factorization.

1123111323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650441.

The product of its digits is 216, while the sum is 22.

Adding to 1123111323211 its reverse (1123231113211), we get a palindrome (2246342436422).

The spelling of 1123111323211 in words is "one trillion, one hundred twenty-three billion, one hundred eleven million, three hundred twenty-three thousand, two hundred eleven".