1103313123 has 16 divisors (see below), whose sum is σ = 1783132800. Its totient is φ = 668674440.

The previous prime is 1103313121. The next prime is 1103313143. The reversal of 1103313123 is 3213133011.

It is a happy number.

It is not a de Polignac number, because 1103313123 - 2¹ = 1103313121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103313096 and 1103313105.

It is not an unprimeable number, because it can be changed into a prime (1103313121) 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, 1857133 + ... + 1857726.

It is an arithmetic number, because the mean of its divisors is an integer number (111445800).

Almost surely, 2^1103313123 is an apocalyptic number.

1103313123 is a deficient number, since it is larger than the sum of its proper divisors (679819677).

1103313123 is a wasteful number, since it uses less digits than its factorization.

1103313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714879 (or 3714873 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1103313123 is about 33216.1575592361. The cubic root of 1103313123 is about 1033.3154618368.

Adding to 1103313123 its reverse (3213133011), we get a palindrome (4316446134).

The spelling of 1103313123 in words is "one billion, one hundred three million, three hundred thirteen thousand, one hundred twenty-three".