12103113311 has 4 divisors (see below), whose sum is σ = 12103707000. Its totient is φ = 12102519624.

The previous prime is 12103113301. The next prime is 12103113313. The reversal of 12103113311 is 11331130121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11331130121 = 5281 ⋅2145641.

It is a cyclic number.

It is not a de Polignac number, because 12103113311 - 2⁶ = 12103113247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12103113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103113313) 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, 265136 + ... + 307413.

It is an arithmetic number, because the mean of its divisors is an integer number (3025926750).

Almost surely, 2^12103113311 is an apocalyptic number.

12103113311 is a deficient number, since it is larger than the sum of its proper divisors (593689).

12103113311 is an equidigital number, since it uses as much as digits as its factorization.

12103113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593688.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12103113311 its reverse (11331130121), we get a palindrome (23434243432).

The spelling of 12103113311 in words is "twelve billion, one hundred three million, one hundred thirteen thousand, three hundred eleven".