202100010257 has 2 divisors, whose sum is σ = 202100010258. Its totient is φ = 202100010256.

The previous prime is 202100010223. The next prime is 202100010353. The reversal of 202100010257 is 752010001202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101235966976 + 100864043281 = 318176^2 + 317591^2 .

It is a cyclic number.

It is not a de Polignac number, because 202100010257 - 2⁸ = 202100010001 is a prime.

It is a super-3 number, since 3×202100010257³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (202100010457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050005128 + 101050005129.

It is an arithmetic number, because the mean of its divisors is an integer number (101050005129).

Almost surely, 2^202100010257 is an apocalyptic number.

It is an amenable number.

202100010257 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100010257 is an equidigital number, since it uses as much as digits as its factorization.

202100010257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

Adding to 202100010257 its reverse (752010001202), we get a palindrome (954110011459).

The spelling of 202100010257 in words is "two hundred two billion, one hundred million, ten thousand, two hundred fifty-seven".