120111002020109 has 2 divisors, whose sum is σ = 120111002020110. Its totient is φ = 120111002020108.

The previous prime is 120111002020019. The next prime is 120111002020133. The reversal of 120111002020109 is 901020200111021.

Together with previous prime (120111002020019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102081823638025 + 18029178382084 = 10103555^2 + 4246078^2 .

It is a cyclic number.

It is not a de Polignac number, because 120111002020109 - 2³⁶ = 120042282543373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120111002020189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055501010054 + 60055501010055.

It is an arithmetic number, because the mean of its divisors is an integer number (60055501010055).

Almost surely, 2^{120111002020109} is an apocalyptic number.

It is an amenable number.

120111002020109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111002020109 is an equidigital number, since it uses as much as digits as its factorization.

120111002020109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 120111002020109 in words is "one hundred twenty trillion, one hundred eleven billion, two million, twenty thousand, one hundred nine".