43421313124 has 24 divisors (see below), whose sum is σ = 86877461888. Its totient is φ = 18601669440.

The previous prime is 43421313059. The next prime is 43421313191. The reversal of 43421313124 is 42131312434.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 43421313092 and 43421313101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239697 + ... + 379864.

Almost surely, 2^43421313124 is an apocalyptic number.

It is an amenable number.

43421313124 is an abundant number, since it is smaller than the sum of its proper divisors (43456148764).

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

43421313124 is a wasteful number, since it uses less digits than its factorization.

43421313124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622075 (or 622073 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 43421313124 its reverse (42131312434), we get a palindrome (85552625558).

The spelling of 43421313124 in words is "forty-three billion, four hundred twenty-one million, three hundred thirteen thousand, one hundred twenty-four".