43211334012 has 96 divisors (see below), whose sum is σ = 126400694784. Its totient is φ = 11161670400.

The previous prime is 43211334011. The next prime is 43211334071. The reversal of 43211334012 is 21043311234.

It is a happy number.

It is a super-2 number, since 2×43211334012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43211334011) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 38058 + ... + 296430.

It is an arithmetic number, because the mean of its divisors is an integer number (1316673904).

Almost surely, 2^43211334012 is an apocalyptic number.

43211334012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43211334012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63200347392).

43211334012 is an abundant number, since it is smaller than the sum of its proper divisors (83189360772).

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

43211334012 is a wasteful number, since it uses less digits than its factorization.

43211334012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258579 (or 258577 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 43211334012 its reverse (21043311234), we get a palindrome (64254645246).

The spelling of 43211334012 in words is "forty-three billion, two hundred eleven million, three hundred thirty-four thousand, twelve".