102101120309 has 2 divisors, whose sum is σ = 102101120310. Its totient is φ = 102101120308.

The previous prime is 102101120189. The next prime is 102101120321. The reversal of 102101120309 is 903021101201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97939580209 + 4161540100 = 312953^2 + 64510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102101120309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102101129309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050560154 + 51050560155.

It is an arithmetic number, because the mean of its divisors is an integer number (51050560155).

Almost surely, 2^102101120309 is an apocalyptic number.

It is an amenable number.

102101120309 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101120309 is an equidigital number, since it uses as much as digits as its factorization.

102101120309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 102101120309 in words is "one hundred two billion, one hundred one million, one hundred twenty thousand, three hundred nine".