43202020349 has 2 divisors, whose sum is σ = 43202020350. Its totient is φ = 43202020348.

The previous prime is 43202020231. The next prime is 43202020361. The reversal of 43202020349 is 94302020234.

43202020349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38163576025 + 5038444324 = 195355^2 + 70982^2 .

It is a cyclic number.

It is not a de Polignac number, because 43202020349 - 2²⁰ = 43200971773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43202020649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21601010174 + 21601010175.

It is an arithmetic number, because the mean of its divisors is an integer number (21601010175).

Almost surely, 2^43202020349 is an apocalyptic number.

It is an amenable number.

43202020349 is a deficient number, since it is larger than the sum of its proper divisors (1).

43202020349 is an equidigital number, since it uses as much as digits as its factorization.

43202020349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 43202020349 in words is "forty-three billion, two hundred two million, twenty thousand, three hundred forty-nine".