43423121033444 has 6 divisors (see below), whose sum is σ = 75990461808534. Its totient is φ = 21711560516720.

The previous prime is 43423121033423. The next prime is 43423121033491. The reversal of 43423121033444 is 44433012132434.

It can be written as a sum of positive squares in only one way, i.e., 25535719610944 + 17887401422500 = 5053288^2 + 4229350^2 .

It is a super-2 number, since 2×43423121033444² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43423121033398 and 43423121033407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5427890129177 + ... + 5427890129184.

It is an arithmetic number, because the mean of its divisors is an integer number (12665076968089).

Almost surely, 2^{43423121033444} is an apocalyptic number.

It is an amenable number.

43423121033444 is a deficient number, since it is larger than the sum of its proper divisors (32567340775090).

43423121033444 is a wasteful number, since it uses less digits than its factorization.

43423121033444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855780258365 (or 10855780258363 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 43423121033444 its reverse (44433012132434), we get a palindrome (87856133165878).

The spelling of 43423121033444 in words is "forty-three trillion, four hundred twenty-three billion, one hundred twenty-one million, thirty-three thousand, four hundred forty-four".