213442104303173 has 2 divisors, whose sum is σ = 213442104303174. Its totient is φ = 213442104303172.

The previous prime is 213442104303091. The next prime is 213442104303203. The reversal of 213442104303173 is 371303401244312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132077969980324 + 81364134322849 = 11492518^2 + 9020207^2 .

It is a cyclic number.

It is not a de Polignac number, because 213442104303173 - 2³⁴ = 213424924433989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213442104306173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106721052151586 + 106721052151587.

It is an arithmetic number, because the mean of its divisors is an integer number (106721052151587).

Almost surely, 2^{213442104303173} is an apocalyptic number.

It is an amenable number.

213442104303173 is a deficient number, since it is larger than the sum of its proper divisors (1).

213442104303173 is an equidigital number, since it uses as much as digits as its factorization.

213442104303173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 213442104303173 its reverse (371303401244312), we get a palindrome (584745505547485).

The spelling of 213442104303173 in words is "two hundred thirteen trillion, four hundred forty-two billion, one hundred four million, three hundred three thousand, one hundred seventy-three".