203113323073 has 2 divisors, whose sum is σ = 203113323074. Its totient is φ = 203113323072.

The previous prime is 203113323053. The next prime is 203113323187. The reversal of 203113323073 is 370323311302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170658219664 + 32455103409 = 413108^2 + 180153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203113323073 is a prime.

It is a super-3 number, since 3×203113323073³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (203113323013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556661536 + 101556661537.

It is an arithmetic number, because the mean of its divisors is an integer number (101556661537).

Almost surely, 2^203113323073 is an apocalyptic number.

It is an amenable number.

203113323073 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113323073 is an equidigital number, since it uses as much as digits as its factorization.

203113323073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 28.

Adding to 203113323073 its reverse (370323311302), we get a palindrome (573436634375).

The spelling of 203113323073 in words is "two hundred three billion, one hundred thirteen million, three hundred twenty-three thousand, seventy-three".