102328972381 has 2 divisors, whose sum is σ = 102328972382. Its totient is φ = 102328972380.

The previous prime is 102328972379. The next prime is 102328972451. The reversal of 102328972381 is 183279823201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84047228281 + 18281744100 = 289909^2 + 135210^2 .

It is a cyclic number.

It is not a de Polignac number, because 102328972381 - 2¹ = 102328972379 is a prime.

It is a super-2 number, since 2×102328972381² (a number of 23 digits) contains 22 as substring.

Together with 102328972379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102328972481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51164486190 + 51164486191.

It is an arithmetic number, because the mean of its divisors is an integer number (51164486191).

Almost surely, 2^102328972381 is an apocalyptic number.

It is an amenable number.

102328972381 is a deficient number, since it is larger than the sum of its proper divisors (1).

102328972381 is an equidigital number, since it uses as much as digits as its factorization.

102328972381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 102328972381 in words is "one hundred two billion, three hundred twenty-eight million, nine hundred seventy-two thousand, three hundred eighty-one".