102102011999987 has 2 divisors, whose sum is σ = 102102011999988. Its totient is φ = 102102011999986.

The previous prime is 102102011999963. The next prime is 102102011999993. The reversal of 102102011999987 is 789999110201201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102102011999987 - 2²² = 102102007805683 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102011999387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051005999993 + 51051005999994.

It is an arithmetic number, because the mean of its divisors is an integer number (51051005999994).

Almost surely, 2^{102102011999987} is an apocalyptic number.

102102011999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102011999987 is an equidigital number, since it uses as much as digits as its factorization.

102102011999987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 59.

The spelling of 102102011999987 in words is "one hundred two trillion, one hundred two billion, eleven million, nine hundred ninety-nine thousand, nine hundred eighty-seven".