42231322660432 has 20 divisors (see below), whose sum is σ = 81823591360116. Its totient is φ = 21115557148160.

The previous prime is 42231322660403. The next prime is 42231322660441. The reversal of 42231322660432 is 23406622313224.

It can be written as a sum of positive squares in 2 ways, for example, as 4869595504656 + 37361727155776 = 2206716^2 + 6112424^2 .

It is a super-2 number, since 2×42231322660432² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113419 + ... + 9703402.

Almost surely, 2^{42231322660432} is an apocalyptic number.

It is an amenable number.

42231322660432 is a deficient number, since it is larger than the sum of its proper divisors (39592268699684).

42231322660432 is a wasteful number, since it uses less digits than its factorization.

42231322660432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13022766 (or 13022760 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

Adding to 42231322660432 its reverse (23406622313224), we get a palindrome (65637944973656).

The spelling of 42231322660432 in words is "forty-two trillion, two hundred thirty-one billion, three hundred twenty-two million, six hundred sixty thousand, four hundred thirty-two".