43402121443130 has 32 divisors (see below), whose sum is σ = 79206146168400. Its totient is φ = 17120404242432.

The previous prime is 43402121443111. The next prime is 43402121443133. The reversal of 43402121443130 is 3134412120434.

It can be written as a sum of positive squares in 8 ways, for example, as 10288691344801 + 33113430098329 = 3207599^2 + 5754427^2 .

It is not an unprimeable number, because it can be changed into a prime (43402121443133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213026 + ... + 9319314.

Almost surely, 2^{43402121443130} is an apocalyptic number.

43402121443130 is a deficient number, since it is larger than the sum of its proper divisors (35804024725270).

43402121443130 is a wasteful number, since it uses less digits than its factorization.

43402121443130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112898.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 43402121443130 its reverse (3134412120434), we get a palindrome (46536533563564).

The spelling of 43402121443130 in words is "forty-three trillion, four hundred two billion, one hundred twenty-one million, four hundred forty-three thousand, one hundred thirty".