13123410335220 has 48 divisors (see below), whose sum is σ = 36988896970368. Its totient is φ = 3476400086400.

The previous prime is 13123410335209. The next prime is 13123410335237. The reversal of 13123410335220 is 2253301432131.

It is a super-2 number, since 2×13123410335220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724240959 + ... + 724259078.

It is an arithmetic number, because the mean of its divisors is an integer number (770602020216).

Almost surely, 2^{13123410335220} is an apocalyptic number.

13123410335220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123410335220 is an abundant number, since it is smaller than the sum of its proper divisors (23865486635148).

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

13123410335220 is a wasteful number, since it uses less digits than its factorization.

13123410335220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448500200 (or 1448500198 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 13123410335220 its reverse (2253301432131), we get a palindrome (15376711767351).

The spelling of 13123410335220 in words is "thirteen trillion, one hundred twenty-three billion, four hundred ten million, three hundred thirty-five thousand, two hundred twenty".