13123410001220 has 24 divisors (see below), whose sum is σ = 27680567007744. Its totient is φ = 5226239047136.

The previous prime is 13123410001171. The next prime is 13123410001243. The reversal of 13123410001220 is 2210001432131.

It is a super-3 number, since 3×13123410001220³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 = 13123410001192 and 13123410001201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445304932 + ... + 1445314011.

It is an arithmetic number, because the mean of its divisors is an integer number (1153356958656).

Almost surely, 2^{13123410001220} is an apocalyptic number.

13123410001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123410001220 is an abundant number, since it is smaller than the sum of its proper divisors (14557157006524).

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

13123410001220 is a wasteful number, since it uses less digits than its factorization.

13123410001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890619179 (or 2890619177 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13123410001220 its reverse (2210001432131), we get a palindrome (15333411433351).

The spelling of 13123410001220 in words is "thirteen trillion, one hundred twenty-three billion, four hundred ten million, one thousand, two hundred twenty".