43146231344221 has 8 divisors (see below), whose sum is σ = 43292498473944. Its totient is φ = 43000028109120.

The previous prime is 43146231344207. The next prime is 43146231344267. The reversal of 43146231344221 is 12244313264134.

It can be written as a sum of positive squares in 4 ways, for example, as 11409627418596 + 31736603925625 = 3377814^2 + 5633525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43146231344221 - 2²⁷ = 43146097126493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43146231344521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14620630 + ... + 17322103.

It is an arithmetic number, because the mean of its divisors is an integer number (5411562309243).

Almost surely, 2^{43146231344221} is an apocalyptic number.

It is an amenable number.

43146231344221 is a deficient number, since it is larger than the sum of its proper divisors (146267129723).

43146231344221 is a wasteful number, since it uses less digits than its factorization.

43146231344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31947311.

The product of its digits is 331776, while the sum is 40.

The spelling of 43146231344221 in words is "forty-three trillion, one hundred forty-six billion, two hundred thirty-one million, three hundred forty-four thousand, two hundred twenty-one".