1121123212223 has 8 divisors (see below), whose sum is σ = 1296720824448. Its totient is φ = 949384888344.

The previous prime is 1121123212211. The next prime is 1121123212229. The reversal of 1121123212223 is 3222123211211.

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 1121123212223 - 2¹⁶ = 1121123146687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121123212229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964821461 + ... + 964822622.

It is an arithmetic number, because the mean of its divisors is an integer number (162090103056).

Almost surely, 2^{1121123212223} is an apocalyptic number.

1121123212223 is a deficient number, since it is larger than the sum of its proper divisors (175597612225).

1121123212223 is an equidigital number, since it uses as much as digits as its factorization.

1121123212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929644173.

The product of its digits is 576, while the sum is 23.

Adding to 1121123212223 its reverse (3222123211211), we get a palindrome (4343246423434).

The spelling of 1121123212223 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, two hundred twelve thousand, two hundred twenty-three".