43021020045 has 8 divisors (see below), whose sum is σ = 68833632096. Its totient is φ = 22944544016.

The previous prime is 43021020017. The next prime is 43021020067. The reversal of 43021020045 is 54002012034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43021020045 - 2⁷ = 43021019917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1434033987 + ... + 1434034016.

It is an arithmetic number, because the mean of its divisors is an integer number (8604204012).

Almost surely, 2^43021020045 is an apocalyptic number.

It is an amenable number.

43021020045 is a deficient number, since it is larger than the sum of its proper divisors (25812612051).

43021020045 is a wasteful number, since it uses less digits than its factorization.

43021020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868068011.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 43021020045 its reverse (54002012034), we get a palindrome (97023032079).

The spelling of 43021020045 in words is "forty-three billion, twenty-one million, twenty thousand, forty-five".