43211433412 has 144 divisors (see below), whose sum is σ = 92858088960. Its totient is φ = 17518975488.

The previous prime is 43211433409. The next prime is 43211433413. The reversal of 43211433412 is 21433411234.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (43211433413) 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, 92529603 + ... + 92530069.

It is an arithmetic number, because the mean of its divisors is an integer number (644847840).

Almost surely, 2^43211433412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43211433412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46429044480).

43211433412 is an abundant number, since it is smaller than the sum of its proper divisors (49646655548).

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

43211433412 is a wasteful number, since it uses less digits than its factorization.

43211433412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 801 counting only the distinct ones).

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

Adding to 43211433412 its reverse (21433411234), we get a palindrome (64644844646).

The spelling of 43211433412 in words is "forty-three billion, two hundred eleven million, four hundred thirty-three thousand, four hundred twelve".