43050521321 has 4 divisors (see below), whose sum is σ = 43052196432. Its totient is φ = 43048846212.

The previous prime is 43050521317. The next prime is 43050521329. The reversal of 43050521321 is 12312505034.

It is a happy number.

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 43050521321 - 2² = 43050521317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43050521329) 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, 798395 + ... + 850608.

It is an arithmetic number, because the mean of its divisors is an integer number (10763049108).

Almost surely, 2^43050521321 is an apocalyptic number.

It is an amenable number.

43050521321 is a deficient number, since it is larger than the sum of its proper divisors (1675111).

43050521321 is a wasteful number, since it uses less digits than its factorization.

43050521321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675110.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 43050521321 in words is "forty-three billion, fifty million, five hundred twenty-one thousand, three hundred twenty-one".