1121342103 has 16 divisors (see below), whose sum is σ = 1898568960. Its totient is φ = 640766808.

The previous prime is 1121342071. The next prime is 1121342107. The reversal of 1121342103 is 3012431211.

It is not a de Polignac number, because 1121342103 - 2⁵ = 1121342071 is a prime.

It is a super-2 number, since 2×1121342103² = 2514816223920925218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121342107) 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, 2966325 + ... + 2966702.

It is an arithmetic number, because the mean of its divisors is an integer number (118660560).

Almost surely, 2^1121342103 is an apocalyptic number.

1121342103 is a deficient number, since it is larger than the sum of its proper divisors (777226857).

1121342103 is an equidigital number, since it uses as much as digits as its factorization.

1121342103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933043 (or 5933037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1121342103 is about 33486.4465567788. The cubic root of 1121342103 is about 1038.9134679984.

Adding to 1121342103 its reverse (3012431211), we get a palindrome (4133773314).

The spelling of 1121342103 in words is "one billion, one hundred twenty-one million, three hundred forty-two thousand, one hundred three".