1121123103 has 8 divisors (see below), whose sum is σ = 1495036848. Its totient is φ = 747312384.

The previous prime is 1121123099. The next prime is 1121123111. The reversal of 1121123103 is 3013211211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121123103 - 2² = 1121123099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121123183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4825 + ... + 47597.

It is an arithmetic number, because the mean of its divisors is an integer number (186879606).

Almost surely, 2^1121123103 is an apocalyptic number.

1121123103 is a deficient number, since it is larger than the sum of its proper divisors (373913745).

1121123103 is an equidigital number, since it uses as much as digits as its factorization.

1121123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51513.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1121123103 is about 33483.1764174189. The cubic root of 1121123103 is about 1038.8458297453.

Adding to 1121123103 its reverse (3013211211), we get a palindrome (4134334314).

The spelling of 1121123103 in words is "one billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred three".