102122020243 has 2 divisors, whose sum is σ = 102122020244. Its totient is φ = 102122020242.

The previous prime is 102122020199. The next prime is 102122020261. The reversal of 102122020243 is 342020221201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102122020243 - 2¹³ = 102122012051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102122020243.

It is not a weakly prime, because it can be changed into another prime (102122020643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061010121 + 51061010122.

It is an arithmetic number, because the mean of its divisors is an integer number (51061010122).

Almost surely, 2^102122020243 is an apocalyptic number.

102122020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

102122020243 is an equidigital number, since it uses as much as digits as its factorization.

102122020243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 102122020243 its reverse (342020221201), we get a palindrome (444142241444).

The spelling of 102122020243 in words is "one hundred two billion, one hundred twenty-two million, twenty thousand, two hundred forty-three".