102002201893 has 2 divisors, whose sum is σ = 102002201894. Its totient is φ = 102002201892.

The previous prime is 102002201849. The next prime is 102002202011. The reversal of 102002201893 is 398102200201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97705006084 + 4297195809 = 312578^2 + 65553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102002201893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102002501893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51001100946 + 51001100947.

It is an arithmetic number, because the mean of its divisors is an integer number (51001100947).

Almost surely, 2^102002201893 is an apocalyptic number.

It is an amenable number.

102002201893 is a deficient number, since it is larger than the sum of its proper divisors (1).

102002201893 is an equidigital number, since it uses as much as digits as its factorization.

102002201893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 102002201893 in words is "one hundred two billion, two million, two hundred one thousand, eight hundred ninety-three".