102102221021903 has 2 divisors, whose sum is σ = 102102221021904. Its totient is φ = 102102221021902.

The previous prime is 102102221021869. The next prime is 102102221021929. The reversal of 102102221021903 is 309120122201201.

It is an a-pointer prime, because the next prime (102102221021929) can be obtained adding 102102221021903 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102102221021903 - 2³⁴ = 102085041152719 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102221021953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051110510951 + 51051110510952.

It is an arithmetic number, because the mean of its divisors is an integer number (51051110510952).

Almost surely, 2^{102102221021903} is an apocalyptic number.

102102221021903 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102221021903 is an equidigital number, since it uses as much as digits as its factorization.

102102221021903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 102102221021903 in words is "one hundred two trillion, one hundred two billion, two hundred twenty-one million, twenty-one thousand, nine hundred three".