203202213197 has 2 divisors, whose sum is σ = 203202213198. Its totient is φ = 203202213196.

The previous prime is 203202213173. The next prime is 203202213211. The reversal of 203202213197 is 791312202302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190561933156 + 12640280041 = 436534^2 + 112429^2 .

It is a cyclic number.

It is not a de Polignac number, because 203202213197 - 2¹⁰ = 203202212173 is a prime.

It is a super-2 number, since 2×203202213197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203202213167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101601106598 + 101601106599.

It is an arithmetic number, because the mean of its divisors is an integer number (101601106599).

Almost surely, 2^203202213197 is an apocalyptic number.

It is an amenable number.

203202213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

203202213197 is an equidigital number, since it uses as much as digits as its factorization.

203202213197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 203202213197 its reverse (791312202302), we get a palindrome (994514415499).

The spelling of 203202213197 in words is "two hundred three billion, two hundred two million, two hundred thirteen thousand, one hundred ninety-seven".