2111020210073 has 2 divisors, whose sum is σ = 2111020210074. Its totient is φ = 2111020210072.

The previous prime is 2111020209989. The next prime is 2111020210097. The reversal of 2111020210073 is 3700120201112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317233653264 + 793786556809 = 1147708^2 + 890947^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111020210073 - 2¹⁰ = 2111020209049 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111020210373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510105036 + 1055510105037.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510105037).

Almost surely, 2^{2111020210073} is an apocalyptic number.

It is an amenable number.

2111020210073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111020210073 is an equidigital number, since it uses as much as digits as its factorization.

2111020210073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 2111020210073 its reverse (3700120201112), we get a palindrome (5811140411185).

The spelling of 2111020210073 in words is "two trillion, one hundred eleven billion, twenty million, two hundred ten thousand, seventy-three".