13103121310220 has 24 divisors (see below), whose sum is σ = 27516647082624. Its totient is φ = 5241230937216.

The previous prime is 13103121310219. The next prime is 13103121310229. The reversal of 13103121310220 is 2201312130131.

It is a happy number.

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 = 13103121310192 and 13103121310201.

It is not an unprimeable number, because it can be changed into a prime (13103121310229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6188837 + ... + 8031683.

It is an arithmetic number, because the mean of its divisors is an integer number (1146526961776).

Almost surely, 2^{13103121310220} is an apocalyptic number.

13103121310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103121310220 is an abundant number, since it is smaller than the sum of its proper divisors (14413525772404).

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

13103121310220 is a wasteful number, since it uses less digits than its factorization.

13103121310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198369 (or 2198367 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13103121310220 its reverse (2201312130131), we get a palindrome (15304433440351).

The spelling of 13103121310220 in words is "thirteen trillion, one hundred three billion, one hundred twenty-one million, three hundred ten thousand, two hundred twenty".