1121112321123 has 16 divisors (see below), whose sum is σ = 1530755525376. Its totient is φ = 729465391200.

The previous prime is 1121112321101. The next prime is 1121112321223. The reversal of 1121112321123 is 3211232111211.

It is not a de Polignac number, because 1121112321123 - 2²² = 1121108126819 is a prime.

It is a super-2 number, since 2×1121112321123² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121112321123.

It is not an unprimeable number, because it can be changed into a prime (1121112321223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3172215 + ... + 3507872.

It is an arithmetic number, because the mean of its divisors is an integer number (95672220336).

Almost surely, 2^{1121112321123} is an apocalyptic number.

1121112321123 is a deficient number, since it is larger than the sum of its proper divisors (409643204253).

1121112321123 is a wasteful number, since it uses less digits than its factorization.

1121112321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681434.

The product of its digits is 144, while the sum is 21.

Adding to 1121112321123 its reverse (3211232111211), we get a palindrome (4332344432334).

The spelling of 1121112321123 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, three hundred twenty-one thousand, one hundred twenty-three".