10101230257 has 2 divisors, whose sum is σ = 10101230258. Its totient is φ = 10101230256.

The previous prime is 10101230189. The next prime is 10101230261. The reversal of 10101230257 is 75203210101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9332332816 + 768897441 = 96604^2 + 27729^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101230257 - 2¹¹ = 10101228209 is a prime.

It is a super-4 number, since 4×10101230257⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (10101230857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050615128 + 5050615129.

It is an arithmetic number, because the mean of its divisors is an integer number (5050615129).

Almost surely, 2^10101230257 is an apocalyptic number.

It is an amenable number.

10101230257 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101230257 is an equidigital number, since it uses as much as digits as its factorization.

10101230257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 10101230257 its reverse (75203210101), we get a palindrome (85304440358).

The spelling of 10101230257 in words is "ten billion, one hundred one million, two hundred thirty thousand, two hundred fifty-seven".