43421143113 has 48 divisors (see below), whose sum is σ = 68829555600. Its totient is φ = 26255093760.

The previous prime is 43421143109. The next prime is 43421143151. The reversal of 43421143113 is 31134112434.

43421143113 is a `hidden beast` number, since 4 + 3 + 4 + 211 + 431 + 13 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5151219984 + 38269923129 = 71772^2 + 195627^2 .

It is not a de Polignac number, because 43421143113 - 2² = 43421143109 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43421143013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2391373 + ... + 2409461.

It is an arithmetic number, because the mean of its divisors is an integer number (1433949075).

Almost surely, 2^43421143113 is an apocalyptic number.

It is an amenable number.

43421143113 is a deficient number, since it is larger than the sum of its proper divisors (25408412487).

43421143113 is a wasteful number, since it uses less digits than its factorization.

43421143113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18682 (or 18679 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 43421143113 its reverse (31134112434), we get a palindrome (74555255547).

The spelling of 43421143113 in words is "forty-three billion, four hundred twenty-one million, one hundred forty-three thousand, one hundred thirteen".