1103144121 has 24 divisors (see below), whose sum is σ = 1604016960. Its totient is φ = 730562976.

The previous prime is 1103144113. The next prime is 1103144129. The reversal of 1103144121 is 1214413011.

It is an interprime number because it is at equal distance from previous prime (1103144113) and next prime (1103144129).

It is not a de Polignac number, because 1103144121 - 2³ = 1103144113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103144094 and 1103144103.

It is not an unprimeable number, because it can be changed into a prime (1103144129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1283790 + ... + 1284648.

It is an arithmetic number, because the mean of its divisors is an integer number (66834040).

Almost surely, 2^1103144121 is an apocalyptic number.

It is an amenable number.

1103144121 is a deficient number, since it is larger than the sum of its proper divisors (500872839).

1103144121 is a wasteful number, since it uses less digits than its factorization.

1103144121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1103144121 is about 33213.6134890499. The cubic root of 1103144121 is about 1033.2626991492.

Adding to 1103144121 its reverse (1214413011), we get a palindrome (2317557132).

The spelling of 1103144121 in words is "one billion, one hundred three million, one hundred forty-four thousand, one hundred twenty-one".