20311131320322 has 8 divisors (see below), whose sum is σ = 40622262640656. Its totient is φ = 6770377106772.

The previous prime is 20311131320273. The next prime is 20311131320329. The reversal of 20311131320322 is 22302313111302.

It is a sphenic number, since it is the product of 3 distinct primes.

20311131320322 is an admirable number.

It is a super-3 number, since 3×20311131320322³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20311131320292 and 20311131320301.

It is not an unprimeable number, because it can be changed into a prime (20311131320329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692594276688 + ... + 1692594276699.

It is an arithmetic number, because the mean of its divisors is an integer number (5077782830082).

Almost surely, 2^{20311131320322} is an apocalyptic number.

20311131320322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20311131320322 is a wasteful number, since it uses less digits than its factorization.

20311131320322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385188553392.

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

Adding to 20311131320322 its reverse (22302313111302), we get a palindrome (42613444431624).

The spelling of 20311131320322 in words is "twenty trillion, three hundred eleven billion, one hundred thirty-one million, three hundred twenty thousand, three hundred twenty-two".