2103307673917 has 2 divisors, whose sum is σ = 2103307673918. Its totient is φ = 2103307673916.

The previous prime is 2103307673881. The next prime is 2103307673921. The reversal of 2103307673917 is 7193767033012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1931894285476 + 171413388441 = 1389926^2 + 414021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103307673917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103307673927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051653836958 + 1051653836959.

It is an arithmetic number, because the mean of its divisors is an integer number (1051653836959).

Almost surely, 2^{2103307673917} is an apocalyptic number.

It is an amenable number.

2103307673917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103307673917 is an equidigital number, since it uses as much as digits as its factorization.

2103307673917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000188, while the sum is 49.

The spelling of 2103307673917 in words is "two trillion, one hundred three billion, three hundred seven million, six hundred seventy-three thousand, nine hundred seventeen".