1121112012103 has 4 divisors (see below), whose sum is σ = 1125101734848. Its totient is φ = 1117122289360.

The previous prime is 1121112012017. The next prime is 1121112012113. The reversal of 1121112012103 is 3012102111211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121112012103 - 2¹³ = 1121112003911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121112012113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994860951 + ... + 1994861512.

It is an arithmetic number, because the mean of its divisors is an integer number (281275433712).

Almost surely, 2^{1121112012103} is an apocalyptic number.

1121112012103 is a deficient number, since it is larger than the sum of its proper divisors (3989722745).

1121112012103 is an equidigital number, since it uses as much as digits as its factorization.

1121112012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989722744.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1121112012103 its reverse (3012102111211), we get a palindrome (4133214123314).

The spelling of 1121112012103 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, twelve thousand, one hundred three".