43020013 has 8 divisors (see below), whose sum is σ = 45608832. Its totient is φ = 40437696.

The previous prime is 43019989. The next prime is 43020023. The reversal of 43020013 is 31002034.

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

It is not a de Polignac number, because 43020013 - 2⁵ = 43019981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43019975 and 43020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43020023) 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, 21606 + ... + 23512.

It is an arithmetic number, because the mean of its divisors is an integer number (5701104).

Almost surely, 2^43020013 is an apocalyptic number.

It is an amenable number.

43020013 is a deficient number, since it is larger than the sum of its proper divisors (2588819).

43020013 is a wasteful number, since it uses less digits than its factorization.

43020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 43020013 is about 6558.9643237328. The cubic root of 43020013 is about 350.3941491633.

Adding to 43020013 its reverse (31002034), we get a palindrome (74022047).

The spelling of 43020013 in words is "forty-three million, twenty thousand, thirteen".