1103212113 has 16 divisors (see below), whose sum is σ = 1522540800. Its totient is φ = 709708160.

The previous prime is 1103212111. The next prime is 1103212139. The reversal of 1103212113 is 3112123011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1103212113 - 2¹ = 1103212111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103212092 and 1103212101.

It is not an unprimeable number, because it can be changed into a prime (1103212111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256168 + ... + 260438.

It is an arithmetic number, because the mean of its divisors is an integer number (95158800).

Almost surely, 2^1103212113 is an apocalyptic number.

It is an amenable number.

1103212113 is a deficient number, since it is larger than the sum of its proper divisors (419328687).

1103212113 is a wasteful number, since it uses less digits than its factorization.

1103212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272.

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

The square root of 1103212113 is about 33214.6370294784. The cubic root of 1103212113 is about 1033.2839270054.

Adding to 1103212113 its reverse (3112123011), we get a palindrome (4215335124).

The spelling of 1103212113 in words is "one billion, one hundred three million, two hundred twelve thousand, one hundred thirteen".