212103335173 has 2 divisors, whose sum is σ = 212103335174. Its totient is φ = 212103335172.

The previous prime is 212103335111. The next prime is 212103335177. The reversal of 212103335173 is 371533301212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139612080609 + 72491254564 = 373647^2 + 269242^2 .

It is a cyclic number.

It is not a de Polignac number, because 212103335173 - 2³³ = 203513400581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212103335177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051667586 + 106051667587.

It is an arithmetic number, because the mean of its divisors is an integer number (106051667587).

Almost surely, 2^212103335173 is an apocalyptic number.

It is an amenable number.

212103335173 is a deficient number, since it is larger than the sum of its proper divisors (1).

212103335173 is an equidigital number, since it uses as much as digits as its factorization.

212103335173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

Adding to 212103335173 its reverse (371533301212), we get a palindrome (583636636385).

The spelling of 212103335173 in words is "two hundred twelve billion, one hundred three million, three hundred thirty-five thousand, one hundred seventy-three".