34021020181 has 2 divisors, whose sum is σ = 34021020182. Its totient is φ = 34021020180.

The previous prime is 34021020167. The next prime is 34021020233. The reversal of 34021020181 is 18102012043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22992869956 + 11028150225 = 151634^2 + 105015^2 .

It is an emirp because it is prime and its reverse (18102012043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34021020181 - 2⁵ = 34021020149 is a prime.

It is a super-2 number, since 2×34021020181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34021020151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010510090 + 17010510091.

It is an arithmetic number, because the mean of its divisors is an integer number (17010510091).

Almost surely, 2^34021020181 is an apocalyptic number.

It is an amenable number.

34021020181 is a deficient number, since it is larger than the sum of its proper divisors (1).

34021020181 is an equidigital number, since it uses as much as digits as its factorization.

34021020181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 34021020181 in words is "thirty-four billion, twenty-one million, twenty thousand, one hundred eighty-one".