102012011869049 has 2 divisors, whose sum is σ = 102012011869050. Its totient is φ = 102012011869048.

The previous prime is 102012011869013. The next prime is 102012011869051. The reversal of 102012011869049 is 940968110210201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79882213159225 + 22129798709824 = 8937685^2 + 4704232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102012011869049 is a prime.

Together with 102012011869051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102012011869549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006005934524 + 51006005934525.

It is an arithmetic number, because the mean of its divisors is an integer number (51006005934525).

Almost surely, 2^{102012011869049} is an apocalyptic number.

It is an amenable number.

102012011869049 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012011869049 is an equidigital number, since it uses as much as digits as its factorization.

102012011869049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 102012011869049 in words is "one hundred two trillion, twelve billion, eleven million, eight hundred sixty-nine thousand, forty-nine".