203011013265673 has 2 divisors, whose sum is σ = 203011013265674. Its totient is φ = 203011013265672.

The previous prime is 203011013265629. The next prime is 203011013265677. The reversal of 203011013265673 is 376562310110302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201404008289344 + 1607004976329 = 14191688^2 + 1267677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203011013265673 is a prime.

It is not a weakly prime, because it can be changed into another prime (203011013265677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101505506632836 + 101505506632837.

It is an arithmetic number, because the mean of its divisors is an integer number (101505506632837).

Almost surely, 2^{203011013265673} is an apocalyptic number.

It is an amenable number.

203011013265673 is a deficient number, since it is larger than the sum of its proper divisors (1).

203011013265673 is an equidigital number, since it uses as much as digits as its factorization.

203011013265673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

Adding to 203011013265673 its reverse (376562310110302), we get a palindrome (579573323375975).

The spelling of 203011013265673 in words is "two hundred three trillion, eleven billion, thirteen million, two hundred sixty-five thousand, six hundred seventy-three".