13263443434120 has 384 divisors, whose sum is σ = 33727287565440. Its totient is φ = 4654080000000.

The previous prime is 13263443434097. The next prime is 13263443434183. The reversal of 13263443434120 is 2143434436231.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52842403995 + ... + 52842404245.

It is an arithmetic number, because the mean of its divisors is an integer number (87831478035).

Almost surely, 2^{13263443434120} is an apocalyptic number.

13263443434120 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 13263443434120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16863643782720).

13263443434120 is an abundant number, since it is smaller than the sum of its proper divisors (20463844131320).

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

13263443434120 is a wasteful number, since it uses less digits than its factorization.

13263443434120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 13263443434120 in words is "thirteen trillion, two hundred sixty-three billion, four hundred forty-three million, four hundred thirty-four thousand, one hundred twenty".