13012031203220 has 96 divisors (see below), whose sum is σ = 31334526736128. Its totient is φ = 4446178394112.

The previous prime is 13012031203141. The next prime is 13012031203261. The reversal of 13012031203220 is 2230213021031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13012031203192 and 13012031203201.

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, 489657854 + ... + 489684426.

It is an arithmetic number, because the mean of its divisors is an integer number (326401320168).

Almost surely, 2^{13012031203220} is an apocalyptic number.

13012031203220 is a gapful number since it is divisible by the number (10) 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 13012031203220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15667263368064).

13012031203220 is an abundant number, since it is smaller than the sum of its proper divisors (18322495532908).

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

13012031203220 is a wasteful number, since it uses less digits than its factorization.

13012031203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38289 (or 38287 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13012031203220 its reverse (2230213021031), we get a palindrome (15242244224251).

The spelling of 13012031203220 in words is "thirteen trillion, twelve billion, thirty-one million, two hundred three thousand, two hundred twenty".