20371383 has 12 divisors (see below), whose sum is σ = 30143568. Its totient is φ = 13249440.

The previous prime is 20371381. The next prime is 20371447. The reversal of 20371383 is 38317302.

It is not a de Polignac number, because 20371383 - 2¹ = 20371381 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20371381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27235 + ... + 27972.

It is an arithmetic number, because the mean of its divisors is an integer number (2511964).

Almost surely, 2^20371383 is an apocalyptic number.

20371383 is a deficient number, since it is larger than the sum of its proper divisors (9772185).

20371383 is a wasteful number, since it uses less digits than its factorization.

20371383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55254 (or 55251 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20371383 is about 4513.4668493299. The cubic root of 20371383 is about 273.1116155925. Note that the first 3 decimals are identical.

Adding to 20371383 its reverse (38317302), we get a palindrome (58688685).

The spelling of 20371383 in words is "twenty million, three hundred seventy-one thousand, three hundred eighty-three".