204321101401273 has 2 divisors, whose sum is σ = 204321101401274. Its totient is φ = 204321101401272.

The previous prime is 204321101401253. The next prime is 204321101401349. The reversal of 204321101401273 is 372104101123402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185791838780304 + 18529262620969 = 13630548^2 + 4304563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204321101401273 is a prime.

It is a super-2 number, since 2×204321101401273² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204321101401253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102160550700636 + 102160550700637.

It is an arithmetic number, because the mean of its divisors is an integer number (102160550700637).

Almost surely, 2^{204321101401273} is an apocalyptic number.

It is an amenable number.

204321101401273 is a deficient number, since it is larger than the sum of its proper divisors (1).

204321101401273 is an equidigital number, since it uses as much as digits as its factorization.

204321101401273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 204321101401273 its reverse (372104101123402), we get a palindrome (576425202524675).

The spelling of 204321101401273 in words is "two hundred four trillion, three hundred twenty-one billion, one hundred one million, four hundred one thousand, two hundred seventy-three".