243412130421 has 24 divisors (see below), whose sum is σ = 391870926720. Its totient is φ = 144690800256.

The previous prime is 243412130407. The next prime is 243412130441. The reversal of 243412130421 is 124031214342.

243412130421 is a `hidden beast` number, since 24 + 3 + 4 + 1 + 213 + 0 + 421 = 666.

It is not a de Polignac number, because 243412130421 - 2²³ = 243403741813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243412130441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41863645 + ... + 41869458.

It is an arithmetic number, because the mean of its divisors is an integer number (16327955280).

Almost surely, 2^243412130421 is an apocalyptic number.

It is an amenable number.

243412130421 is a deficient number, since it is larger than the sum of its proper divisors (148458796299).

243412130421 is a wasteful number, since it uses less digits than its factorization.

243412130421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83733145 (or 83733142 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243412130421 its reverse (124031214342), we get a palindrome (367443344763).

The spelling of 243412130421 in words is "two hundred forty-three billion, four hundred twelve million, one hundred thirty thousand, four hundred twenty-one".