34021220357 has 2 divisors, whose sum is σ = 34021220358. Its totient is φ = 34021220356.

The previous prime is 34021220281. The next prime is 34021220371. The reversal of 34021220357 is 75302212043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17547241156 + 16473979201 = 132466^2 + 128351^2 .

It is a cyclic number.

It is not a de Polignac number, because 34021220357 - 2¹⁰ = 34021219333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34021220377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010610178 + 17010610179.

It is an arithmetic number, because the mean of its divisors is an integer number (17010610179).

Almost surely, 2^34021220357 is an apocalyptic number.

It is an amenable number.

34021220357 is a deficient number, since it is larger than the sum of its proper divisors (1).

34021220357 is an equidigital number, since it uses as much as digits as its factorization.

34021220357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 34021220357 in words is "thirty-four billion, twenty-one million, two hundred twenty thousand, three hundred fifty-seven".