20311322311302 has 144 divisors (see below), whose sum is σ = 45265185528528. Its totient is φ = 6071392800000.

The previous prime is 20311322311271. The next prime is 20311322311309.

20311322311302 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311322311309) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2051436552 + ... + 2051446452.

Almost surely, 2^{20311322311302} is an apocalyptic number.

20311322311302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20311322311302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22632592764264).

20311322311302 is an abundant number, since it is smaller than the sum of its proper divisors (24953863217226).

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

20311322311302 is a wasteful number, since it uses less digits than its factorization.

20311322311302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407 (or 10295 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

It can be divided in two parts, 2031132 and 2311302, that added together give a palindrome (4342434).

The spelling of 20311322311302 in words is "twenty trillion, three hundred eleven billion, three hundred twenty-two million, three hundred eleven thousand, three hundred two".