13134043220 has 24 divisors (see below), whose sum is σ = 27617389800. Its totient is φ = 5246779392.

The previous prime is 13134043199. The next prime is 13134043271. The reversal of 13134043220 is 2234043131.

It can be written as a sum of positive squares in 4 ways, for example, as 3769223236 + 9364819984 = 61394^2 + 96772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411605 + ... + 442364.

It is an arithmetic number, because the mean of its divisors is an integer number (1150724575).

Almost surely, 2^13134043220 is an apocalyptic number.

13134043220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13134043220 is an abundant number, since it is smaller than the sum of its proper divisors (14483346580).

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

13134043220 is a wasteful number, since it uses less digits than its factorization.

13134043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854747 (or 854745 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13134043220 its reverse (2234043131), we get a palindrome (15368086351).

The spelling of 13134043220 in words is "thirteen billion, one hundred thirty-four million, forty-three thousand, two hundred twenty".