43213502329 has 4 divisors (see below), whose sum is σ = 43472265984. Its totient is φ = 42954738676.

The previous prime is 43213502303. The next prime is 43213502333. The reversal of 43213502329 is 92320531234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43213502329 - 2⁷ = 43213502201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43213502294 and 43213502303.

It is not an unprimeable number, because it can be changed into a prime (43213502369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129381577 + ... + 129381910.

It is an arithmetic number, because the mean of its divisors is an integer number (10868066496).

Almost surely, 2^43213502329 is an apocalyptic number.

It is an amenable number.

43213502329 is a deficient number, since it is larger than the sum of its proper divisors (258763655).

43213502329 is a wasteful number, since it uses less digits than its factorization.

43213502329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258763654.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 43213502329 in words is "forty-three billion, two hundred thirteen million, five hundred two thousand, three hundred twenty-nine".