20381822135 has 8 divisors (see below), whose sum is σ = 24499434960. Its totient is φ = 16277958784.

The previous prime is 20381822089. The next prime is 20381822141. The reversal of 20381822135 is 53122818302.

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 20381822135 - 2¹⁴ = 20381805751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20381822095 and 20381822104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3434105 + ... + 3440034.

It is an arithmetic number, because the mean of its divisors is an integer number (3062429370).

Almost surely, 2^20381822135 is an apocalyptic number.

20381822135 is a deficient number, since it is larger than the sum of its proper divisors (4117612825).

20381822135 is an equidigital number, since it uses as much as digits as its factorization.

20381822135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874737.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 20381822135 in words is "twenty billion, three hundred eighty-one million, eight hundred twenty-two thousand, one hundred thirty-five".