243130132013 has 8 divisors (see below), whose sum is σ = 249714037368. Its totient is φ = 236546901504.

The previous prime is 243130131997. The next prime is 243130132039. The reversal of 243130132013 is 310231031342.

It can be written as a sum of positive squares in 4 ways, for example, as 95479764004 + 147650368009 = 308998^2 + 384253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243130132013 - 2⁴ = 243130131997 is a prime.

It is a super-2 number, since 2×243130132013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243130132013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243130132213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609545 + ... + 926177.

It is an arithmetic number, because the mean of its divisors is an integer number (31214254671).

Almost surely, 2^243130132013 is an apocalyptic number.

It is an amenable number.

243130132013 is a deficient number, since it is larger than the sum of its proper divisors (6583905355).

243130132013 is a wasteful number, since it uses less digits than its factorization.

243130132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337423.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 243130132013 its reverse (310231031342), we get a palindrome (553361163355).

The spelling of 243130132013 in words is "two hundred forty-three billion, one hundred thirty million, one hundred thirty-two thousand, thirteen".