12103100231 has 4 divisors (see below), whose sum is σ = 12142017264. Its totient is φ = 12064183200.

The previous prime is 12103100183. The next prime is 12103100239. The reversal of 12103100231 is 13200130121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13200130121 = 59 ⋅223731019.

It is a cyclic number.

It is not a de Polignac number, because 12103100231 - 2⁶ = 12103100167 is a prime.

It is a super-2 number, since 2×12103100231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103100239) 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, 19458050 + ... + 19458671.

It is an arithmetic number, because the mean of its divisors is an integer number (3035504316).

Almost surely, 2^12103100231 is an apocalyptic number.

12103100231 is a deficient number, since it is larger than the sum of its proper divisors (38917033).

12103100231 is an equidigital number, since it uses as much as digits as its factorization.

12103100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38917032.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12103100231 its reverse (13200130121), we get a palindrome (25303230352).

The spelling of 12103100231 in words is "twelve billion, one hundred three million, one hundred thousand, two hundred thirty-one".