20143371 has 8 divisors (see below), whose sum is σ = 27784080. Its totient is φ = 12965792.

The previous prime is 20143337. The next prime is 20143379. The reversal of 20143371 is 17334102.

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

It is a cyclic number.

It is not a de Polignac number, because 20143371 - 2⁷ = 20143243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20143379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115680 + ... + 115853.

It is an arithmetic number, because the mean of its divisors is an integer number (3473010).

Almost surely, 2^20143371 is an apocalyptic number.

20143371 is a deficient number, since it is larger than the sum of its proper divisors (7640709).

20143371 is a wasteful number, since it uses less digits than its factorization.

20143371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231565.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20143371 is about 4488.1366957792. The cubic root of 20143371 is about 272.0888325407.

Adding to 20143371 its reverse (17334102), we get a palindrome (37477473).

The spelling of 20143371 in words is "twenty million, one hundred forty-three thousand, three hundred seventy-one".