201043230397 has 2 divisors, whose sum is σ = 201043230398. Its totient is φ = 201043230396.

The previous prime is 201043230383. The next prime is 201043230449. The reversal of 201043230397 is 793032340102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114713625636 + 86329604761 = 338694^2 + 293819^2 .

It is a cyclic number.

It is not a de Polignac number, because 201043230397 - 2¹¹ = 201043228349 is a prime.

It is a super-2 number, since 2×201043230397² (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 (201043230317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100521615198 + 100521615199.

It is an arithmetic number, because the mean of its divisors is an integer number (100521615199).

Almost surely, 2^201043230397 is an apocalyptic number.

It is an amenable number.

201043230397 is a deficient number, since it is larger than the sum of its proper divisors (1).

201043230397 is an equidigital number, since it uses as much as digits as its factorization.

201043230397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 34.

Adding to 201043230397 its reverse (793032340102), we get a palindrome (994075570499).

The spelling of 201043230397 in words is "two hundred one billion, forty-three million, two hundred thirty thousand, three hundred ninety-seven".