20419382231 has 4 divisors (see below), whose sum is σ = 20754126264. Its totient is φ = 20084638200.

The previous prime is 20419382209. The next prime is 20419382237. The reversal of 20419382231 is 13228391402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20419382231 - 2⁶ = 20419382167 is a prime.

It is a super-2 number, since 2×20419382231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20419382191 and 20419382200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419382237) 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 3 ways as a sum of consecutive naturals, for example, 167371925 + ... + 167372046.

It is an arithmetic number, because the mean of its divisors is an integer number (5188531566).

Almost surely, 2^20419382231 is an apocalyptic number.

20419382231 is a deficient number, since it is larger than the sum of its proper divisors (334744033).

20419382231 is an equidigital number, since it uses as much as digits as its factorization.

20419382231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334744032.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 20419382231 in words is "twenty billion, four hundred nineteen million, three hundred eighty-two thousand, two hundred thirty-one".