20321344312302 has 32 divisors (see below), whose sum is σ = 44338608042624. Its totient is φ = 6157826244000.

The previous prime is 20321344312271. The next prime is 20321344312309.

It is a happy number.

20321344312302 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 20321344312302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321344312309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298533 + ... + 6506064.

It is an arithmetic number, because the mean of its divisors is an integer number (1385581501332).

Almost surely, 2^{20321344312302} is an apocalyptic number.

20321344312302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20321344312302 is an abundant number, since it is smaller than the sum of its proper divisors (24017263730322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321344312302 is a wasteful number, since it uses less digits than its factorization.

20321344312302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844064.

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 2032134 and 4312302, that added together give a palindrome (6344436).

The spelling of 20321344312302 in words is "twenty trillion, three hundred twenty-one billion, three hundred forty-four million, three hundred twelve thousand, three hundred two".