102164318381 has 2 divisors, whose sum is σ = 102164318382. Its totient is φ = 102164318380.

The previous prime is 102164318303. The next prime is 102164318393. The reversal of 102164318381 is 183813461201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60794792356 + 41369526025 = 246566^2 + 203395^2 .

It is a cyclic number.

It is not a de Polignac number, because 102164318381 - 2¹⁸ = 102164056237 is a prime.

It is a super-2 number, since 2×102164318381² (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 (102164318681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51082159190 + 51082159191.

It is an arithmetic number, because the mean of its divisors is an integer number (51082159191).

Almost surely, 2^102164318381 is an apocalyptic number.

It is an amenable number.

102164318381 is a deficient number, since it is larger than the sum of its proper divisors (1).

102164318381 is an equidigital number, since it uses as much as digits as its factorization.

102164318381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

Adding to 102164318381 its reverse (183813461201), we get a palindrome (285977779582).

The spelling of 102164318381 in words is "one hundred two billion, one hundred sixty-four million, three hundred eighteen thousand, three hundred eighty-one".