142433340021 has 12 divisors (see below), whose sum is σ = 235128053472. Its totient is φ = 81390479976.

The previous prime is 142433340019. The next prime is 142433340031. The reversal of 142433340021 is 120043334241.

142433340021 is a `hidden beast` number, since 14 + 243 + 3 + 3 + 400 + 2 + 1 = 666.

It is not a de Polignac number, because 142433340021 - 2¹ = 142433340019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142433340031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1130423271 + ... + 1130423396.

It is an arithmetic number, because the mean of its divisors is an integer number (19594004456).

Almost surely, 2^142433340021 is an apocalyptic number.

It is an amenable number.

142433340021 is a deficient number, since it is larger than the sum of its proper divisors (92694713451).

142433340021 is a wasteful number, since it uses less digits than its factorization.

142433340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260846680 (or 2260846677 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 142433340021 its reverse (120043334241), we get a palindrome (262476674262).

The spelling of 142433340021 in words is "one hundred forty-two billion, four hundred thirty-three million, three hundred forty thousand, twenty-one".