73203099331993 has 2 divisors, whose sum is σ = 73203099331994. Its totient is φ = 73203099331992.

The previous prime is 73203099331927. The next prime is 73203099331997. The reversal of 73203099331993 is 39913399030237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54473964899904 + 18729134432089 = 7380648^2 + 4327717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73203099331993 is a prime.

It is not a weakly prime, because it can be changed into another prime (73203099331997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36601549665996 + 36601549665997.

It is an arithmetic number, because the mean of its divisors is an integer number (36601549665997).

Almost surely, 2^{73203099331993} is an apocalyptic number.

It is an amenable number.

73203099331993 is a deficient number, since it is larger than the sum of its proper divisors (1).

73203099331993 is an equidigital number, since it uses as much as digits as its factorization.

73203099331993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22320522, while the sum is 61.

The spelling of 73203099331993 in words is "seventy-three trillion, two hundred three billion, ninety-nine million, three hundred thirty-one thousand, nine hundred ninety-three".