20321211302 has 16 divisors (see below), whose sum is σ = 35547309600. Its totient is φ = 8709090264.

The previous prime is 20321211301. The next prime is 20321211389. The reversal of 20321211302 is 20311212302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321211301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14810693 + ... + 14812064.

It is an arithmetic number, because the mean of its divisors is an integer number (2221706850).

Almost surely, 2^20321211302 is an apocalyptic number.

20321211302 is a deficient number, since it is larger than the sum of its proper divisors (15226098298).

20321211302 is an equidigital number, since it uses as much as digits as its factorization.

20321211302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29622780 (or 29622766 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20321211302 its reverse (20311212302), we get a palindrome (40632423604).

The spelling of 20321211302 in words is "twenty billion, three hundred twenty-one million, two hundred eleven thousand, three hundred two".