201030258257 has 2 divisors, whose sum is σ = 201030258258. Its totient is φ = 201030258256.

The previous prime is 201030258217. The next prime is 201030258263. The reversal of 201030258257 is 752852030102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191385250576 + 9645007681 = 437476^2 + 98209^2 .

It is a cyclic number.

It is not a de Polignac number, because 201030258257 - 2⁶ = 201030258193 is a prime.

It is a super-2 number, since 2×201030258257² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201030258217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515129128 + 100515129129.

It is an arithmetic number, because the mean of its divisors is an integer number (100515129129).

Almost surely, 2^201030258257 is an apocalyptic number.

It is an amenable number.

201030258257 is a deficient number, since it is larger than the sum of its proper divisors (1).

201030258257 is an equidigital number, since it uses as much as digits as its factorization.

201030258257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 201030258257 its reverse (752852030102), we get a palindrome (953882288359).

The spelling of 201030258257 in words is "two hundred one billion, thirty million, two hundred fifty-eight thousand, two hundred fifty-seven".