43021243344342 has 32 divisors (see below), whose sum is σ = 87009949859040. Its totient is φ = 14179173155840.

The previous prime is 43021243344307. The next prime is 43021243344433. The reversal of 43021243344342 is 24344334212034.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43021243344342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91036138 + ... + 91507490.

It is an arithmetic number, because the mean of its divisors is an integer number (2719060933095).

Almost surely, 2^{43021243344342} is an apocalyptic number.

43021243344342 is an abundant number, since it is smaller than the sum of its proper divisors (43988706514698).

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

43021243344342 is a wasteful number, since it uses less digits than its factorization.

43021243344342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642368.

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 43021243344342 its reverse (24344334212034), we get a palindrome (67365577556376).

The spelling of 43021243344342 in words is "forty-three trillion, twenty-one billion, two hundred forty-three million, three hundred forty-four thousand, three hundred forty-two".