42432355121 has 8 divisors (see below), whose sum is σ = 45831984744. Its totient is φ = 39052097280.

The previous prime is 42432355087. The next prime is 42432355123. The reversal of 42432355121 is 12155323424.

It can be written as a sum of positive squares in 4 ways, for example, as 3307515121 + 39124840000 = 57511^2 + 197800^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42432355121 - 2³⁰ = 41358613297 is a prime.

It is a super-2 number, since 2×42432355121² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42432355123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4838390 + ... + 4847151.

It is an arithmetic number, because the mean of its divisors is an integer number (5728998093).

Almost surely, 2^42432355121 is an apocalyptic number.

It is an amenable number.

42432355121 is a deficient number, since it is larger than the sum of its proper divisors (3399629623).

42432355121 is a wasteful number, since it uses less digits than its factorization.

42432355121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9685891.

The product of its digits is 28800, while the sum is 32.

Adding to 42432355121 its reverse (12155323424), we get a palindrome (54587678545).

The spelling of 42432355121 in words is "forty-two billion, four hundred thirty-two million, three hundred fifty-five thousand, one hundred twenty-one".