20010010200149 has 2 divisors, whose sum is σ = 20010010200150. Its totient is φ = 20010010200148.

The previous prime is 20010010200113. The next prime is 20010010200227. The reversal of 20010010200149 is 94100201001002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11359393936900 + 8650616263249 = 3370370^2 + 2941193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010010200149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010010200149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010010200749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005005100074 + 10005005100075.

It is an arithmetic number, because the mean of its divisors is an integer number (10005005100075).

Almost surely, 2^{20010010200149} is an apocalyptic number.

It is an amenable number.

20010010200149 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010010200149 is an equidigital number, since it uses as much as digits as its factorization.

20010010200149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 20010010200149 in words is "twenty trillion, ten billion, ten million, two hundred thousand, one hundred forty-nine".