3123206556103 has 2 divisors, whose sum is σ = 3123206556104. Its totient is φ = 3123206556102.

The previous prime is 3123206556083. The next prime is 3123206556157. The reversal of 3123206556103 is 3016556023213.

It is a weak prime.

It is an emirp because it is prime and its reverse (3016556023213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123206556103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123206556163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561603278051 + 1561603278052.

It is an arithmetic number, because the mean of its divisors is an integer number (1561603278052).

Almost surely, 2^{3123206556103} is an apocalyptic number.

3123206556103 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123206556103 is an equidigital number, since it uses as much as digits as its factorization.

3123206556103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 3123206556103 in words is "three trillion, one hundred twenty-three billion, two hundred six million, five hundred fifty-six thousand, one hundred three".