2101101120149 has 2 divisors, whose sum is σ = 2101101120150. Its totient is φ = 2101101120148.

The previous prime is 2101101120119. The next prime is 2101101120211. The reversal of 2101101120149 is 9410211011012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1661688574225 + 439412545924 = 1289065^2 + 662882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101101120149 - 2²⁰ = 2101100071573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101101120119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050550560074 + 1050550560075.

It is an arithmetic number, because the mean of its divisors is an integer number (1050550560075).

Almost surely, 2^{2101101120149} is an apocalyptic number.

It is an amenable number.

2101101120149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101101120149 is an equidigital number, since it uses as much as digits as its factorization.

2101101120149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 2101101120149 in words is "two trillion, one hundred one billion, one hundred one million, one hundred twenty thousand, one hundred forty-nine".