102242043121 has 2 divisors, whose sum is σ = 102242043122. Its totient is φ = 102242043120.

The previous prime is 102242043077. The next prime is 102242043181. The reversal of 102242043121 is 121340242201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59409187600 + 42832855521 = 243740^2 + 206961^2 .

It is a cyclic number.

It is not a de Polignac number, because 102242043121 - 2⁷ = 102242042993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102242043092 and 102242043101.

It is not a weakly prime, because it can be changed into another prime (102242043181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51121021560 + 51121021561.

It is an arithmetic number, because the mean of its divisors is an integer number (51121021561).

Almost surely, 2^102242043121 is an apocalyptic number.

It is an amenable number.

102242043121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102242043121 is an equidigital number, since it uses as much as digits as its factorization.

102242043121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 102242043121 its reverse (121340242201), we get a palindrome (223582285322).

The spelling of 102242043121 in words is "one hundred two billion, two hundred forty-two million, forty-three thousand, one hundred twenty-one".