43212123430 has 96 divisors (see below), whose sum is σ = 93041488512. Its totient is φ = 14399078400.

The previous prime is 43212123413. The next prime is 43212123457. The reversal of 43212123430 is 3432121234.

It is a super-2 number, since 2×43212123430² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 43212123395 and 43212123404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5440422 + ... + 5448358.

It is an arithmetic number, because the mean of its divisors is an integer number (969182172).

Almost surely, 2^43212123430 is an apocalyptic number.

43212123430 is an abundant number, since it is smaller than the sum of its proper divisors (49829365082).

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

43212123430 is a wasteful number, since it uses less digits than its factorization.

43212123430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270 (or 8263 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43212123430 its reverse (3432121234), we get a palindrome (46644244664).

The spelling of 43212123430 in words is "forty-three billion, two hundred twelve million, one hundred twenty-three thousand, four hundred thirty".