102120443 has 2 divisors, whose sum is σ = 102120444. Its totient is φ = 102120442.

The previous prime is 102120433. The next prime is 102120449. The reversal of 102120443 is 344021201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102120443 - 2¹⁰ = 102119419 is a prime.

It is not a weakly prime, because it can be changed into another prime (102120449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060221 + 51060222.

It is an arithmetic number, because the mean of its divisors is an integer number (51060222).

Almost surely, 2^102120443 is an apocalyptic number.

102120443 is a deficient number, since it is larger than the sum of its proper divisors (1).

102120443 is an equidigital number, since it uses as much as digits as its factorization.

102120443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102120443 is about 10105.4659961825. The cubic root of 102120443 is about 467.4167054935.

Adding to 102120443 its reverse (344021201), we get a palindrome (446141644).

The spelling of 102120443 in words is "one hundred two million, one hundred twenty thousand, four hundred forty-three".