203230997 has 2 divisors, whose sum is σ = 203230998. Its totient is φ = 203230996.

The previous prime is 203230969. The next prime is 203231027. The reversal of 203230997 is 799032302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189585361 + 13645636 = 13769^2 + 3694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203230997 is a prime.

It is a super-2 number, since 2×203230997² = 82605676283228018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203230697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101615498 + 101615499.

It is an arithmetic number, because the mean of its divisors is an integer number (101615499).

Almost surely, 2^203230997 is an apocalyptic number.

It is an amenable number.

203230997 is a deficient number, since it is larger than the sum of its proper divisors (1).

203230997 is an equidigital number, since it uses as much as digits as its factorization.

203230997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 203230997 is about 14255.9109494974. The cubic root of 203230997 is about 587.9359041692.

The spelling of 203230997 in words is "two hundred three million, two hundred thirty thousand, nine hundred ninety-seven".