43321001045 has 32 divisors (see below), whose sum is σ = 61409283840. Its totient is φ = 28723530240.

The previous prime is 43321001039. The next prime is 43321001047. The reversal of 43321001045 is 54010012334.

It is not a de Polignac number, because 43321001045 - 2¹⁴ = 43320984661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43321001045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43321001047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45992 + ... + 297921.

It is an arithmetic number, because the mean of its divisors is an integer number (1919040120).

Almost surely, 2^43321001045 is an apocalyptic number.

It is an amenable number.

43321001045 is a deficient number, since it is larger than the sum of its proper divisors (18088282795).

43321001045 is a wasteful number, since it uses less digits than its factorization.

43321001045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344045.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 43321001045 its reverse (54010012334), we get a palindrome (97331013379).

The spelling of 43321001045 in words is "forty-three billion, three hundred twenty-one million, one thousand, forty-five".