12103021203811 has 2 divisors, whose sum is σ = 12103021203812. Its totient is φ = 12103021203810.

The previous prime is 12103021203799. The next prime is 12103021203817. The reversal of 12103021203811 is 11830212030121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12103021203811 is a prime.

It is not a weakly prime, because it can be changed into another prime (12103021203817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051510601905 + 6051510601906.

It is an arithmetic number, because the mean of its divisors is an integer number (6051510601906).

Almost surely, 2^{12103021203811} is an apocalyptic number.

12103021203811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103021203811 is an equidigital number, since it uses as much as digits as its factorization.

12103021203811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 12103021203811 its reverse (11830212030121), we get a palindrome (23933233233932).

The spelling of 12103021203811 in words is "twelve trillion, one hundred three billion, twenty-one million, two hundred three thousand, eight hundred eleven".