73144035224021 has 2 divisors, whose sum is σ = 73144035224022. Its totient is φ = 73144035224020.

The previous prime is 73144035223979. The next prime is 73144035224063. The reversal of 73144035224021 is 12042253044137.

It is a balanced prime because it is at equal distance from previous prime (73144035223979) and next prime (73144035224063).

It can be written as a sum of positive squares in only one way, i.e., 48085140579025 + 25058894644996 = 6934345^2 + 5005886^2 .

It is an emirp because it is prime and its reverse (12042253044137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73144035224021 - 2¹⁰ = 73144035222997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73144035220021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36572017612010 + 36572017612011.

It is an arithmetic number, because the mean of its divisors is an integer number (36572017612011).

Almost surely, 2^{73144035224021} is an apocalyptic number.

It is an amenable number.

73144035224021 is a deficient number, since it is larger than the sum of its proper divisors (1).

73144035224021 is an equidigital number, since it uses as much as digits as its factorization.

73144035224021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 73144035224021 its reverse (12042253044137), we get a palindrome (85186288268158).

The spelling of 73144035224021 in words is "seventy-three trillion, one hundred forty-four billion, thirty-five million, two hundred twenty-four thousand, twenty-one".