200102102261 has 2 divisors, whose sum is σ = 200102102262. Its totient is φ = 200102102260.

The previous prime is 200102102197. The next prime is 200102102273. The reversal of 200102102261 is 162201201002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167207388100 + 32894714161 = 408910^2 + 181369^2 .

It is a cyclic number.

It is not a de Polignac number, because 200102102261 - 2⁶ = 200102102197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200102104261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100051051130 + 100051051131.

It is an arithmetic number, because the mean of its divisors is an integer number (100051051131).

Almost surely, 2^200102102261 is an apocalyptic number.

It is an amenable number.

200102102261 is a deficient number, since it is larger than the sum of its proper divisors (1).

200102102261 is an equidigital number, since it uses as much as digits as its factorization.

200102102261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 200102102261 its reverse (162201201002), we get a palindrome (362303303263).

The spelling of 200102102261 in words is "two hundred billion, one hundred two million, one hundred two thousand, two hundred sixty-one".