1121434103 has 4 divisors (see below), whose sum is σ = 1136796288. Its totient is φ = 1106071920.

The previous prime is 1121434081. The next prime is 1121434129. The reversal of 1121434103 is 3014341211.

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 1121434103 - 2¹⁸ = 1121171959 is a prime.

It is a super-2 number, since 2×1121434103² = 2515228894742829218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121434133) 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, 7680983 + ... + 7681128.

It is an arithmetic number, because the mean of its divisors is an integer number (284199072).

Almost surely, 2^1121434103 is an apocalyptic number.

1121434103 is a deficient number, since it is larger than the sum of its proper divisors (15362185).

1121434103 is an equidigital number, since it uses as much as digits as its factorization.

1121434103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15362184.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1121434103 is about 33487.8202187004. The cubic root of 1121434103 is about 1038.9418796148.

Adding to 1121434103 its reverse (3014341211), we get a palindrome (4135775314).

The spelling of 1121434103 in words is "one billion, one hundred twenty-one million, four hundred thirty-four thousand, one hundred three".