20223501385 has 8 divisors (see below), whose sum is σ = 24518389896. Its totient is φ = 16012008960.

The previous prime is 20223501367. The next prime is 20223501421. The reversal of 20223501385 is 58310532202.

It can be written as a sum of positive squares in 4 ways, for example, as 6235945024 + 13987556361 = 78968^2 + 118269^2 .

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

It is not a de Polignac number, because 20223501385 - 2¹¹ = 20223499337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20848486 + ... + 20849455.

It is an arithmetic number, because the mean of its divisors is an integer number (3064798737).

Almost surely, 2^20223501385 is an apocalyptic number.

It is an amenable number.

20223501385 is a deficient number, since it is larger than the sum of its proper divisors (4294888511).

20223501385 is an equidigital number, since it uses as much as digits as its factorization.

20223501385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41698043.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 20223501385 in words is "twenty billion, two hundred twenty-three million, five hundred one thousand, three hundred eighty-five".