12103434251 has 2 divisors, whose sum is σ = 12103434252. Its totient is φ = 12103434250.

The previous prime is 12103434193. The next prime is 12103434269. The reversal of 12103434251 is 15243430121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12103434251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12103434251.

It is not a weakly prime, because it can be changed into another prime (12103434271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051717125 + 6051717126.

It is an arithmetic number, because the mean of its divisors is an integer number (6051717126).

Almost surely, 2^12103434251 is an apocalyptic number.

12103434251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103434251 is an equidigital number, since it uses as much as digits as its factorization.

12103434251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12103434251 its reverse (15243430121), we get a palindrome (27346864372).

The spelling of 12103434251 in words is "twelve billion, one hundred three million, four hundred thirty-four thousand, two hundred fifty-one".