102402110189893 has 2 divisors, whose sum is σ = 102402110189894. Its totient is φ = 102402110189892.

The previous prime is 102402110189849. The next prime is 102402110189933. The reversal of 102402110189893 is 398981011204201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81120698930209 + 21281411259684 = 9006703^2 + 4613178^2 .

It is a cyclic number.

It is not a de Polignac number, because 102402110189893 - 2²¹ = 102402108092741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102402110189803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51201055094946 + 51201055094947.

It is an arithmetic number, because the mean of its divisors is an integer number (51201055094947).

Almost surely, 2^{102402110189893} is an apocalyptic number.

It is an amenable number.

102402110189893 is a deficient number, since it is larger than the sum of its proper divisors (1).

102402110189893 is an equidigital number, since it uses as much as digits as its factorization.

102402110189893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 49.

The spelling of 102402110189893 in words is "one hundred two trillion, four hundred two billion, one hundred ten million, one hundred eighty-nine thousand, eight hundred ninety-three".