13130223243156 has 18 divisors (see below), whose sum is σ = 33190286531402. Its totient is φ = 4376741081040.

The previous prime is 13130223243133. The next prime is 13130223243157. The reversal of 13130223243156 is 65134232203131.

13130223243156 is a `hidden beast` number, since 1 + 3 + 1 + 302 + 2 + 32 + 4 + 315 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11835939315600 + 1294283927556 = 3440340^2 + 1137666^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×13130223243156² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 364728423421 = 13130223243156 / (1 + 3 + 1 + 3 + 0 + 2 + 2 + 3 + 2 + 4 + 3 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 13130223243156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130223243157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182364211675 + ... + 182364211746.

Almost surely, 2^{13130223243156} is an apocalyptic number.

It is an amenable number.

13130223243156 is an abundant number, since it is smaller than the sum of its proper divisors (20060063288246).

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

13130223243156 is a wasteful number, since it uses less digits than its factorization.

13130223243156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364728423431 (or 364728423426 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 13130223243156 its reverse (65134232203131), we get a palindrome (78264455446287).

The spelling of 13130223243156 in words is "thirteen trillion, one hundred thirty billion, two hundred twenty-three million, two hundred forty-three thousand, one hundred fifty-six".