20312134224320 has 112 divisors (see below), whose sum is σ = 51248728600128. Its totient is φ = 7641655296000.

The previous prime is 20312134224281. The next prime is 20312134224331. The reversal of 20312134224320 is 2342243121302.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6619445 + ... + 9189195.

Almost surely, 2^{20312134224320} is an apocalyptic number.

20312134224320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20312134224320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25624364300064).

20312134224320 is an abundant number, since it is smaller than the sum of its proper divisors (30936594375808).

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

20312134224320 is a wasteful number, since it uses less digits than its factorization.

20312134224320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571238 (or 2571228 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20312134224320 its reverse (2342243121302), we get a palindrome (22654377345622).

The spelling of 20312134224320 in words is "twenty trillion, three hundred twelve billion, one hundred thirty-four million, two hundred twenty-four thousand, three hundred twenty".