20303213131320 has 128 divisors (see below), whose sum is σ = 71229877424640. Its totient is φ = 4532810365440.

The previous prime is 20303213131303. The next prime is 20303213131343. The reversal of 20303213131320 is 2313131230302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281016111 + ... + 281088350.

It is an arithmetic number, because the mean of its divisors is an integer number (556483417380).

Almost surely, 2^{20303213131320} is an apocalyptic number.

20303213131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303213131320 is an abundant number, since it is smaller than the sum of its proper divisors (50926664293320).

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

20303213131320 is a wasteful number, since it uses less digits than its factorization.

20303213131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562104525 (or 562104521 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20303213131320 its reverse (2313131230302), we get a palindrome (22616344361622).

The spelling of 20303213131320 in words is "twenty trillion, three hundred three billion, two hundred thirteen million, one hundred thirty-one thousand, three hundred twenty".