203011265473 has 2 divisors, whose sum is σ = 203011265474. Its totient is φ = 203011265472.

The previous prime is 203011265459. The next prime is 203011265507. The reversal of 203011265473 is 374562110302.

It is an a-pointer prime, because the next prime (203011265507) can be obtained adding 203011265473 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102641422129 + 100369843344 = 320377^2 + 316812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203011265473 is a prime.

It is not a weakly prime, because it can be changed into another prime (203011265453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101505632736 + 101505632737.

It is an arithmetic number, because the mean of its divisors is an integer number (101505632737).

Almost surely, 2^203011265473 is an apocalyptic number.

It is an amenable number.

203011265473 is a deficient number, since it is larger than the sum of its proper divisors (1).

203011265473 is an equidigital number, since it uses as much as digits as its factorization.

203011265473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 203011265473 its reverse (374562110302), we get a palindrome (577573375775).

The spelling of 203011265473 in words is "two hundred three billion, eleven million, two hundred sixty-five thousand, four hundred seventy-three".