102127532281 has 2 divisors, whose sum is σ = 102127532282. Its totient is φ = 102127532280.

The previous prime is 102127532279. The next prime is 102127532321. The reversal of 102127532281 is 182235721201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89197795600 + 12929736681 = 298660^2 + 113709^2 .

It is an emirp because it is prime and its reverse (182235721201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102127532281 - 2¹ = 102127532279 is a prime.

It is a super-2 number, since 2×102127532281² (a number of 23 digits) contains 22 as substring.

Together with 102127532279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102127532231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51063766140 + 51063766141.

It is an arithmetic number, because the mean of its divisors is an integer number (51063766141).

Almost surely, 2^102127532281 is an apocalyptic number.

It is an amenable number.

102127532281 is a deficient number, since it is larger than the sum of its proper divisors (1).

102127532281 is an equidigital number, since it uses as much as digits as its factorization.

102127532281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 102127532281 in words is "one hundred two billion, one hundred twenty-seven million, five hundred thirty-two thousand, two hundred eighty-one".