43142355321 has 24 divisors (see below), whose sum is σ = 62443997856. Its totient is φ = 26482809600.

The previous prime is 43142355287. The next prime is 43142355331. The reversal of 43142355321 is 12355324134.

43142355321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43142355321 - 2⁶ = 43142355257 is a prime.

It is a super-2 number, since 2×43142355321² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43142355331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97206 + ... + 309408.

It is an arithmetic number, because the mean of its divisors is an integer number (2601833244).

Almost surely, 2^43142355321 is an apocalyptic number.

It is an amenable number.

43142355321 is a deficient number, since it is larger than the sum of its proper divisors (19301642535).

43142355321 is a wasteful number, since it uses less digits than its factorization.

43142355321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212633 (or 212620 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

Adding to 43142355321 its reverse (12355324134), we get a palindrome (55497679455).

The spelling of 43142355321 in words is "forty-three billion, one hundred forty-two million, three hundred fifty-five thousand, three hundred twenty-one".