102293907889 has 2 divisors, whose sum is σ = 102293907890. Its totient is φ = 102293907888.

The previous prime is 102293907841. The next prime is 102293907907. The reversal of 102293907889 is 988709392201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101898216225 + 395691664 = 319215^2 + 19892^2 .

It is an emirp because it is prime and its reverse (988709392201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102293907889 - 2¹¹ = 102293905841 is a prime.

It is not a weakly prime, because it can be changed into another prime (102293907829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51146953944 + 51146953945.

It is an arithmetic number, because the mean of its divisors is an integer number (51146953945).

Almost surely, 2^102293907889 is an apocalyptic number.

It is an amenable number.

102293907889 is a deficient number, since it is larger than the sum of its proper divisors (1).

102293907889 is an equidigital number, since it uses as much as digits as its factorization.

102293907889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 102293907889 in words is "one hundred two billion, two hundred ninety-three million, nine hundred seven thousand, eight hundred eighty-nine".