102102121039 has 2 divisors, whose sum is σ = 102102121040. Its totient is φ = 102102121038.

The previous prime is 102102121013. The next prime is 102102121073. The reversal of 102102121039 is 930121201201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102121039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102121439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051060519 + 51051060520.

It is an arithmetic number, because the mean of its divisors is an integer number (51051060520).

Almost surely, 2^102102121039 is an apocalyptic number.

102102121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102121039 is an equidigital number, since it uses as much as digits as its factorization.

102102121039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 102102121039 in words is "one hundred two billion, one hundred two million, one hundred twenty-one thousand, thirty-nine".