43021240440201 has 16 divisors (see below), whose sum is σ = 63740191233600. Its totient is φ = 28678567865184.

The previous prime is 43021240440151. The next prime is 43021240440209. The reversal of 43021240440201 is 10204404212034.

43021240440201 is a `hidden beast` number, since 4 + 3 + 0 + 2 + 12 + 4 + 0 + 440 + 201 = 666.

It is not a de Polignac number, because 43021240440201 - 2¹⁷ = 43021240309129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43021240440209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62403471 + ... + 63089108.

It is an arithmetic number, because the mean of its divisors is an integer number (3983761952100).

Almost surely, 2^{43021240440201} is an apocalyptic number.

It is an amenable number.

43021240440201 is a deficient number, since it is larger than the sum of its proper divisors (20718950793399).

43021240440201 is a wasteful number, since it uses less digits than its factorization.

43021240440201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125505285 (or 125505279 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 43021240440201 its reverse (10204404212034), we get a palindrome (53225644652235).

The spelling of 43021240440201 in words is "forty-three trillion, twenty-one billion, two hundred forty million, four hundred forty thousand, two hundred one".