102881442823 has 2 divisors, whose sum is σ = 102881442824. Its totient is φ = 102881442822.

The previous prime is 102881442821. The next prime is 102881442883. The reversal of 102881442823 is 328244188201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102881442823 - 2¹ = 102881442821 is a prime.

Together with 102881442821, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102881442823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102881442821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51440721411 + 51440721412.

It is an arithmetic number, because the mean of its divisors is an integer number (51440721412).

Almost surely, 2^102881442823 is an apocalyptic number.

102881442823 is a deficient number, since it is larger than the sum of its proper divisors (1).

102881442823 is an equidigital number, since it uses as much as digits as its factorization.

102881442823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196608, while the sum is 43.

The spelling of 102881442823 in words is "one hundred two billion, eight hundred eighty-one million, four hundred forty-two thousand, eight hundred twenty-three".