1201100120089 has 2 divisors, whose sum is σ = 1201100120090. Its totient is φ = 1201100120088.

The previous prime is 1201100119979. The next prime is 1201100120149. The reversal of 1201100120089 is 9800210011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1200521236489 + 578883600 = 1095683^2 + 24060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201100120089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201100160089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600550060044 + 600550060045.

It is an arithmetic number, because the mean of its divisors is an integer number (600550060045).

Almost surely, 2^{1201100120089} is an apocalyptic number.

It is an amenable number.

1201100120089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201100120089 is an equidigital number, since it uses as much as digits as its factorization.

1201100120089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 1201100120089 in words is "one trillion, two hundred one billion, one hundred million, one hundred twenty thousand, eighty-nine".