997393043203 has 2 divisors, whose sum is σ = 997393043204. Its totient is φ = 997393043202.

The previous prime is 997393043161. The next prime is 997393043209. The reversal of 997393043203 is 302340393799.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997393043203 is a prime.

It is not a weakly prime, because it can be changed into another prime (997393043209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498696521601 + 498696521602.

It is an arithmetic number, because the mean of its divisors is an integer number (498696521602).

Almost surely, 2^997393043203 is an apocalyptic number.

997393043203 is a deficient number, since it is larger than the sum of its proper divisors (1).

997393043203 is an equidigital number, since it uses as much as digits as its factorization.

997393043203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 52.

The spelling of 997393043203 in words is "nine hundred ninety-seven billion, three hundred ninety-three million, forty-three thousand, two hundred three".