20311000322 has 4 divisors (see below), whose sum is σ = 30466500486. Its totient is φ = 10155500160.

The previous prime is 20311000289. The next prime is 20311000417. The reversal of 20311000322 is 22300011302.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 19544319601 + 766680721 = 139801^2 + 27689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20311000297 and 20311000306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077750079 + ... + 5077750082.

Almost surely, 2^20311000322 is an apocalyptic number.

20311000322 is a deficient number, since it is larger than the sum of its proper divisors (10155500164).

20311000322 is a wasteful number, since it uses less digits than its factorization.

20311000322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10155500163.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20311000322 its reverse (22300011302), we get a palindrome (42611011624).

The spelling of 20311000322 in words is "twenty billion, three hundred eleven million, three hundred twenty-two", and thus it is an aban number.