102402227173 has 2 divisors, whose sum is σ = 102402227174. Its totient is φ = 102402227172.

The previous prime is 102402227143. The next prime is 102402227197. The reversal of 102402227173 is 371722204201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62421024964 + 39981202209 = 249842^2 + 199953^2 .

It is an emirp because it is prime and its reverse (371722204201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102402227173 is a prime.

It is a super-2 number, since 2×102402227173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102402227113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51201113586 + 51201113587.

It is an arithmetic number, because the mean of its divisors is an integer number (51201113587).

Almost surely, 2^102402227173 is an apocalyptic number.

It is an amenable number.

102402227173 is a deficient number, since it is larger than the sum of its proper divisors (1).

102402227173 is an equidigital number, since it uses as much as digits as its factorization.

102402227173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 102402227173 in words is "one hundred two billion, four hundred two million, two hundred twenty-seven thousand, one hundred seventy-three".