243034413122131 has 4 divisors (see below), whose sum is σ = 243034975096000. Its totient is φ = 243033851148264.

The previous prime is 243034413122077. The next prime is 243034413122183. The reversal of 243034413122131 is 131221314430342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243034413122131 - 2³¹ = 243032265638483 is a prime.

It is a super-2 number, since 2×243034413122131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243034414122131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280337736 + ... + 281203333.

It is an arithmetic number, because the mean of its divisors is an integer number (60758743774000).

Almost surely, 2^{243034413122131} is an apocalyptic number.

243034413122131 is a deficient number, since it is larger than the sum of its proper divisors (561973869).

243034413122131 is an equidigital number, since it uses as much as digits as its factorization.

243034413122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561973868.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 243034413122131 its reverse (131221314430342), we get a palindrome (374255727552473).

The spelling of 243034413122131 in words is "two hundred forty-three trillion, thirty-four billion, four hundred thirteen million, one hundred twenty-two thousand, one hundred thirty-one".