43212331340 has 24 divisors (see below), whose sum is σ = 90781190640. Its totient is φ = 17278209728.

The previous prime is 43212331307. The next prime is 43212331343. The reversal of 43212331340 is 4313321234.

It is not an unprimeable number, because it can be changed into a prime (43212331343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367307 + ... + 470466.

It is an arithmetic number, because the mean of its divisors is an integer number (3782549610).

Almost surely, 2^43212331340 is an apocalyptic number.

It is an amenable number.

43212331340 is an abundant number, since it is smaller than the sum of its proper divisors (47568859300).

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

43212331340 is a wasteful number, since it uses less digits than its factorization.

43212331340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840361 (or 840359 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 43212331340 its reverse (4313321234), we get a palindrome (47525652574).

The spelling of 43212331340 in words is "forty-three billion, two hundred twelve million, three hundred thirty-one thousand, three hundred forty".