20202002010257 has 2 divisors, whose sum is σ = 20202002010258. Its totient is φ = 20202002010256.

The previous prime is 20202002010181. The next prime is 20202002010263. The reversal of 20202002010257 is 75201020020202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18936109246096 + 1265892764161 = 4351564^2 + 1125119^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202002010257 - 2¹² = 20202002006161 is a prime.

It is a super-3 number, since 3×20202002010257³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20202002010287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101001005128 + 10101001005129.

It is an arithmetic number, because the mean of its divisors is an integer number (10101001005129).

Almost surely, 2^{20202002010257} is an apocalyptic number.

It is an amenable number.

20202002010257 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202002010257 is an equidigital number, since it uses as much as digits as its factorization.

20202002010257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

Adding to 20202002010257 its reverse (75201020020202), we get a palindrome (95403022030459).

The spelling of 20202002010257 in words is "twenty trillion, two hundred two billion, two million, ten thousand, two hundred fifty-seven".