43021113 has 8 divisors (see below), whose sum is σ = 58695648. Its totient is φ = 28013664.

The previous prime is 43021103. The next prime is 43021129. The reversal of 43021113 is 31112034.

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

It is a de Polignac number, because none of the positive numbers 2^k-43021113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43021092 and 43021101.

It is not an unprimeable number, because it can be changed into a prime (43021103) 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, 166620 + ... + 166877.

It is an arithmetic number, because the mean of its divisors is an integer number (7336956).

Almost surely, 2^43021113 is an apocalyptic number.

43021113 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

43021113 is a deficient number, since it is larger than the sum of its proper divisors (15674535).

43021113 is a wasteful number, since it uses less digits than its factorization.

43021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333543.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 43021113 is about 6559.0481778990. The cubic root of 43021113 is about 350.3971356050.

Adding to 43021113 its reverse (31112034), we get a palindrome (74133147).

It can be divided in two parts, 43021 and 113, that added together give a palindrome (43134).

The spelling of 43021113 in words is "forty-three million, twenty-one thousand, one hundred thirteen".