20371319 has 2 divisors, whose sum is σ = 20371320. Its totient is φ = 20371318.

The previous prime is 20371303. The next prime is 20371327. The reversal of 20371319 is 91317302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20371319 - 2⁴ = 20371303 is a prime.

It is a super-2 number, since 2×20371319² = 829981275599522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20371339) 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 as a sum of consecutive naturals, namely, 10185659 + 10185660.

It is an arithmetic number, because the mean of its divisors is an integer number (10185660).

Almost surely, 2^20371319 is an apocalyptic number.

20371319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20371319 is an equidigital number, since it uses as much as digits as its factorization.

20371319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 20371319 is about 4513.4597594307. The cubic root of 20371319 is about 273.1113295840. Note that the first 3 decimals are identical.

The spelling of 20371319 in words is "twenty million, three hundred seventy-one thousand, three hundred nineteen".