13011423434220 has 96 divisors (see below), whose sum is σ = 37058495846400. Its totient is φ = 3410073908224.

The previous prime is 13011423434209. The next prime is 13011423434267. The reversal of 13011423434220 is 2243432411031.

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

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, 14164276 + ... + 15054884.

It is an arithmetic number, because the mean of its divisors is an integer number (386025998400).

Almost surely, 2^{13011423434220} is an apocalyptic number.

13011423434220 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 13011423434220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18529247923200).

13011423434220 is an abundant number, since it is smaller than the sum of its proper divisors (24047072412180).

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

13011423434220 is a wasteful number, since it uses less digits than its factorization.

13011423434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894807 (or 894805 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 13011423434220 its reverse (2243432411031), we get a palindrome (15254855845251).

The spelling of 13011423434220 in words is "thirteen trillion, eleven billion, four hundred twenty-three million, four hundred thirty-four thousand, two hundred twenty".