43143003421 has 16 divisors (see below), whose sum is σ = 50367873024. Its totient is φ = 36183921264.

The previous prime is 43143003347. The next prime is 43143003469. The reversal of 43143003421 is 12430034134.

It is a cyclic number.

It is not a de Polignac number, because 43143003421 - 2²⁹ = 42606132509 is a prime.

It is a super-2 number, since 2×43143003421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143007421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533346 + ... + 1561228.

It is an arithmetic number, because the mean of its divisors is an integer number (3147992064).

Almost surely, 2^43143003421 is an apocalyptic number.

It is an amenable number.

43143003421 is a deficient number, since it is larger than the sum of its proper divisors (7224869603).

43143003421 is a wasteful number, since it uses less digits than its factorization.

43143003421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32640.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43143003421 its reverse (12430034134), we get a palindrome (55573037555).

The spelling of 43143003421 in words is "forty-three billion, one hundred forty-three million, three thousand, four hundred twenty-one".