2020012011001 has 2 divisors, whose sum is σ = 2020012011002. Its totient is φ = 2020012011000.

The previous prime is 2020012010999. The next prime is 2020012011011. The reversal of 2020012011001 is 1001102100202.

It is an a-pointer prime, because the next prime (2020012011011) can be obtained adding 2020012011001 to its sum of digits (10).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1583698919401 + 436313091600 = 1258451^2 + 660540^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020012011001 - 2¹ = 2020012010999 is a prime.

Together with 2020012010999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2020012011011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010006005500 + 1010006005501.

It is an arithmetic number, because the mean of its divisors is an integer number (1010006005501).

Almost surely, 2^{2020012011001} is an apocalyptic number.

It is an amenable number.

2020012011001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020012011001 is an equidigital number, since it uses as much as digits as its factorization.

2020012011001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2020012011001 its reverse (1001102100202), we get a palindrome (3021114111203).

The spelling of 2020012011001 in words is "two trillion, twenty billion, twelve million, eleven thousand, one".