12291103 has 8 divisors (see below), whose sum is σ = 13736016. Its totient is φ = 10900800.

The previous prime is 12291101. The next prime is 12291109. The reversal of 12291103 is 30119221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12291103 - 2¹ = 12291101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12291101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13176 + ... + 14077.

It is an arithmetic number, because the mean of its divisors is an integer number (1717002).

Almost surely, 2^12291103 is an apocalyptic number.

12291103 is a deficient number, since it is larger than the sum of its proper divisors (1444913).

12291103 is a wasteful number, since it uses less digits than its factorization.

12291103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27305.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12291103 is about 3505.8669398595. The cubic root of 12291103 is about 230.7793536614.

It can be divided in two parts, 1229 and 1103, that added together give a palindrome (2332).

The spelling of 12291103 in words is "twelve million, two hundred ninety-one thousand, one hundred three".