201001234244257 has 2 divisors, whose sum is σ = 201001234244258. Its totient is φ = 201001234244256.

The previous prime is 201001234244047. The next prime is 201001234244281. The reversal of 201001234244257 is 752442432100102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172676656141201 + 28324578103056 = 13140649^2 + 5322084^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001234244257 - 2²³ = 201001225855649 is a prime.

It is not a weakly prime, because it can be changed into another prime (201001234244557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500617122128 + 100500617122129.

It is an arithmetic number, because the mean of its divisors is an integer number (100500617122129).

Almost surely, 2^{201001234244257} is an apocalyptic number.

It is an amenable number.

201001234244257 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001234244257 is an equidigital number, since it uses as much as digits as its factorization.

201001234244257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 37.

Adding to 201001234244257 its reverse (752442432100102), we get a palindrome (953443666344359).

The spelling of 201001234244257 in words is "two hundred one trillion, one billion, two hundred thirty-four million, two hundred forty-four thousand, two hundred fifty-seven".