13031230323220 has 12 divisors (see below), whose sum is σ = 27365583678804. Its totient is φ = 5212492129280.

The previous prime is 13031230323151. The next prime is 13031230323263. The reversal of 13031230323220 is 2232303213031.

13031230323220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3758255258884 + 9272975064336 = 1938622^2 + 3045156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325780758061 + ... + 325780758100.

It is an arithmetic number, because the mean of its divisors is an integer number (2280465306567).

Almost surely, 2^{13031230323220} is an apocalyptic number.

13031230323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031230323220 is an abundant number, since it is smaller than the sum of its proper divisors (14334353355584).

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

13031230323220 is a wasteful number, since it uses less digits than its factorization.

13031230323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651561516170 (or 651561516168 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 13031230323220 its reverse (2232303213031), we get a palindrome (15263533536251).

The spelling of 13031230323220 in words is "thirteen trillion, thirty-one billion, two hundred thirty million, three hundred twenty-three thousand, two hundred twenty".