20120343 has 4 divisors (see below), whose sum is σ = 26827128. Its totient is φ = 13413560.

The previous prime is 20120323. The next prime is 20120363. The reversal of 20120343 is 34302102.

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

It is an interprime number because it is at equal distance from previous prime (20120323) and next prime (20120363).

It is a cyclic number.

It is not a de Polignac number, because 20120343 - 2⁹ = 20119831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353388 + ... + 3353393.

It is an arithmetic number, because the mean of its divisors is an integer number (6706782).

Almost surely, 2^20120343 is an apocalyptic number.

20120343 is a deficient number, since it is larger than the sum of its proper divisors (6706785).

20120343 is an equidigital number, since it uses as much as digits as its factorization.

20120343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706784.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20120343 is about 4485.5705322735. The cubic root of 20120343 is about 271.9851085778.

Adding to 20120343 its reverse (34302102), we get a palindrome (54422445).

The spelling of 20120343 in words is "twenty million, one hundred twenty thousand, three hundred forty-three".