20323423221152 has 24 divisors (see below), whose sum is σ = 40559845491396. Its totient is φ = 10022510080512.

The previous prime is 20323423221121. The next prime is 20323423221169. The reversal of 20323423221152 is 25112232432302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20307244398736 + 16178822416 = 4506356^2 + 127196^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4350045443 + ... + 4350050114.

Almost surely, 2^{20323423221152} is an apocalyptic number.

It is an amenable number.

20323423221152 is a deficient number, since it is larger than the sum of its proper divisors (20236422270244).

20323423221152 is an equidigital number, since it uses as much as digits as its factorization.

20323423221152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700095640 (or 8700095632 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 20323423221152 its reverse (25112232432302), we get a palindrome (45435655653454).

The spelling of 20323423221152 in words is "twenty trillion, three hundred twenty-three billion, four hundred twenty-three million, two hundred twenty-one thousand, one hundred fifty-two".