102440444273 has 2 divisors, whose sum is σ = 102440444274. Its totient is φ = 102440444272.

The previous prime is 102440444269. The next prime is 102440444297. The reversal of 102440444273 is 372444044201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94066730209 + 8373714064 = 306703^2 + 91508^2 .

It is a cyclic number.

It is not a de Polignac number, because 102440444273 - 2² = 102440444269 is a prime.

It is not a weakly prime, because it can be changed into another prime (102440444233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51220222136 + 51220222137.

It is an arithmetic number, because the mean of its divisors is an integer number (51220222137).

Almost surely, 2^102440444273 is an apocalyptic number.

It is an amenable number.

102440444273 is a deficient number, since it is larger than the sum of its proper divisors (1).

102440444273 is an equidigital number, since it uses as much as digits as its factorization.

102440444273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 35.

Adding to 102440444273 its reverse (372444044201), we get a palindrome (474884488474).

The spelling of 102440444273 in words is "one hundred two billion, four hundred forty million, four hundred forty-four thousand, two hundred seventy-three".