102342250261 has 2 divisors, whose sum is σ = 102342250262. Its totient is φ = 102342250260.

The previous prime is 102342250259. The next prime is 102342250321. The reversal of 102342250261 is 162052243201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100723716900 + 1618533361 = 317370^2 + 40231^2 .

It is a cyclic number.

It is not a de Polignac number, because 102342250261 - 2¹ = 102342250259 is a prime.

Together with 102342250259, 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 (102342250211) 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, 51171125130 + 51171125131.

It is an arithmetic number, because the mean of its divisors is an integer number (51171125131).

Almost surely, 2^102342250261 is an apocalyptic number.

It is an amenable number.

102342250261 is a deficient number, since it is larger than the sum of its proper divisors (1).

102342250261 is an equidigital number, since it uses as much as digits as its factorization.

102342250261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 102342250261 its reverse (162052243201), we get a palindrome (264394493462).

The spelling of 102342250261 in words is "one hundred two billion, three hundred forty-two million, two hundred fifty thousand, two hundred sixty-one".