1123223321121 has 32 divisors (see below), whose sum is σ = 1641834665856. Its totient is φ = 677389440000.

The previous prime is 1123223321107. The next prime is 1123223321137. The reversal of 1123223321121 is 1211233223211.

It is not a de Polignac number, because 1123223321121 - 2⁵ = 1123223321089 is a prime.

It is a super-2 number, since 2×1123223321121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123223321091 and 1123223321100.

It is not an unprimeable number, because it can be changed into a prime (1123223321021) 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 31 ways as a sum of consecutive naturals, for example, 10292575 + ... + 10401131.

It is an arithmetic number, because the mean of its divisors is an integer number (51307333308).

Almost surely, 2^{1123223321121} is an apocalyptic number.

1123223321121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123223321121 is a deficient number, since it is larger than the sum of its proper divisors (518611344735).

1123223321121 is a wasteful number, since it uses less digits than its factorization.

1123223321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110113.

The product of its digits is 864, while the sum is 24.

Adding to 1123223321121 its reverse (1211233223211), we get a palindrome (2334456544332).

The spelling of 1123223321121 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred twenty-one".