43031221134 has 64 divisors (see below), whose sum is σ = 103731217920. Its totient is φ = 11739115520.

The previous prime is 43031221081. The next prime is 43031221169. The reversal of 43031221134 is 43112213034.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 807939 + ... + 859550.

It is an arithmetic number, because the mean of its divisors is an integer number (1620800280).

Almost surely, 2^43031221134 is an apocalyptic number.

43031221134 is an abundant number, since it is smaller than the sum of its proper divisors (60699996786).

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

43031221134 is a wasteful number, since it uses less digits than its factorization.

43031221134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667545.

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

Adding to 43031221134 its reverse (43112213034), we get a palindrome (86143434168).

The spelling of 43031221134 in words is "forty-three billion, thirty-one million, two hundred twenty-one thousand, one hundred thirty-four".