204231123201289 has 2 divisors, whose sum is σ = 204231123201290. Its totient is φ = 204231123201288.

The previous prime is 204231123201229. The next prime is 204231123201349. The reversal of 204231123201289 is 982102321132402.

It is a balanced prime because it is at equal distance from previous prime (204231123201229) and next prime (204231123201349).

It can be written as a sum of positive squares in only one way, i.e., 138173160165264 + 66057963036025 = 11754708^2 + 8127605^2 .

It is a cyclic number.

It is not a de Polignac number, because 204231123201289 - 2³⁵ = 204196763462921 is a prime.

It is a super-2 number, since 2×204231123201289² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204231123201229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102115561600644 + 102115561600645.

It is an arithmetic number, because the mean of its divisors is an integer number (102115561600645).

Almost surely, 2^{204231123201289} is an apocalyptic number.

It is an amenable number.

204231123201289 is a deficient number, since it is larger than the sum of its proper divisors (1).

204231123201289 is an equidigital number, since it uses as much as digits as its factorization.

204231123201289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 204231123201289 in words is "two hundred four trillion, two hundred thirty-one billion, one hundred twenty-three million, two hundred one thousand, two hundred eighty-nine".