43214665243 has 4 divisors (see below), whose sum is σ = 43263941680. Its totient is φ = 43165388808.

The previous prime is 43214665237. The next prime is 43214665253. The reversal of 43214665243 is 34256641234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43214665243 - 2¹³ = 43214657051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43214665196 and 43214665205.

It is not an unprimeable number, because it can be changed into a prime (43214665213) 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, 24636903 + ... + 24638656.

It is an arithmetic number, because the mean of its divisors is an integer number (10815985420).

Almost surely, 2^43214665243 is an apocalyptic number.

43214665243 is a deficient number, since it is larger than the sum of its proper divisors (49276437).

43214665243 is an equidigital number, since it uses as much as digits as its factorization.

43214665243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49276436.

The product of its digits is 414720, while the sum is 40.

The spelling of 43214665243 in words is "forty-three billion, two hundred fourteen million, six hundred sixty-five thousand, two hundred forty-three".