102012049999 has 2 divisors, whose sum is σ = 102012050000. Its totient is φ = 102012049998.

The previous prime is 102012049987. The next prime is 102012050047. The reversal of 102012049999 is 999940210201.

It is a weak prime.

It is an emirp because it is prime and its reverse (999940210201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102012049999 - 2⁹ = 102012049487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102022049999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006024999 + 51006025000.

It is an arithmetic number, because the mean of its divisors is an integer number (51006025000).

Almost surely, 2^102012049999 is an apocalyptic number.

102012049999 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012049999 is an equidigital number, since it uses as much as digits as its factorization.

102012049999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 102012049999 in words is "one hundred two billion, twelve million, forty-nine thousand, nine hundred ninety-nine".