43244031242 has 4 divisors (see below), whose sum is σ = 64866046866. Its totient is φ = 21622015620.

The previous prime is 43244031221. The next prime is 43244031247. The reversal of 43244031242 is 24213044234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24213044234 = 2 ⋅12106522117.

It can be written as a sum of positive squares in only one way, i.e., 33463019041 + 9781012201 = 182929^2 + 98899^2 .

It is not an unprimeable number, because it can be changed into a prime (43244031247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10811007809 + ... + 10811007812.

Almost surely, 2^43244031242 is an apocalyptic number.

43244031242 is a deficient number, since it is larger than the sum of its proper divisors (21622015624).

43244031242 is a wasteful number, since it uses less digits than its factorization.

43244031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21622015623.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 43244031242 its reverse (24213044234), we get a palindrome (67457075476).

The spelling of 43244031242 in words is "forty-three billion, two hundred forty-four million, thirty-one thousand, two hundred forty-two".