20120043 has 4 divisors (see below), whose sum is σ = 26826728. Its totient is φ = 13413360.

The previous prime is 20120029. The next prime is 20120047. The reversal of 20120043 is 34002102.

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

It is not a de Polignac number, because 20120043 - 2⁸ = 20119787 is a prime.

It is a super-2 number, since 2×20120043² = 809632260643698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120047) 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, 3353338 + ... + 3353343.

It is an arithmetic number, because the mean of its divisors is an integer number (6706682).

Almost surely, 2^20120043 is an apocalyptic number.

20120043 is a deficient number, since it is larger than the sum of its proper divisors (6706685).

20120043 is an equidigital number, since it uses as much as digits as its factorization.

20120043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706684.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20120043 is about 4485.5370915867. The cubic root of 20120043 is about 271.9837567794.

Adding to 20120043 its reverse (34002102), we get a palindrome (54122145).

The spelling of 20120043 in words is "twenty million, one hundred twenty thousand, forty-three".