1121213332123 has 6 divisors (see below), whose sum is σ = 1191046688756. Its totient is φ = 1055259606432.

The previous prime is 1121213332091. The next prime is 1121213332163. The reversal of 1121213332123 is 3212333121211.

It is not a de Polignac number, because 1121213332123 - 2⁵ = 1121213332091 is a prime.

It is a super-2 number, since 2×1121213332123² (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 (1121213332163) 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 5 ways as a sum of consecutive naturals, for example, 1939815165 + ... + 1939815742.

Almost surely, 2^{1121213332123} is an apocalyptic number.

1121213332123 is a deficient number, since it is larger than the sum of its proper divisors (69833356633).

1121213332123 is an equidigital number, since it uses as much as digits as its factorization.

1121213332123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879630941 (or 3879630924 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 1121213332123 its reverse (3212333121211), we get a palindrome (4333546453334).

The spelling of 1121213332123 in words is "one trillion, one hundred twenty-one billion, two hundred thirteen million, three hundred thirty-two thousand, one hundred twenty-three".