121002005140189 has 2 divisors, whose sum is σ = 121002005140190. Its totient is φ = 121002005140188.

The previous prime is 121002005140103. The next prime is 121002005140241. The reversal of 121002005140189 is 981041500200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117113844267225 + 3888160872964 = 10821915^2 + 1971842^2 .

It is a cyclic number.

It is not a de Polignac number, because 121002005140189 - 2⁹ = 121002005139677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121002005140789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501002570094 + 60501002570095.

It is an arithmetic number, because the mean of its divisors is an integer number (60501002570095).

Almost surely, 2^{121002005140189} is an apocalyptic number.

It is an amenable number.

121002005140189 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002005140189 is an equidigital number, since it uses as much as digits as its factorization.

121002005140189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 121002005140189 in words is "one hundred twenty-one trillion, two billion, five million, one hundred forty thousand, one hundred eighty-nine".