142421142005015 has 4 divisors (see below), whose sum is σ = 170905370406024. Its totient is φ = 113936913604008.

The previous prime is 142421142004997. The next prime is 142421142005057. The reversal of 142421142005015 is 510500241124241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142421142005015 - 2¹² = 142421142000919 is a prime.

It is a Duffinian number.

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, 14242114200497 + ... + 14242114200506.

It is an arithmetic number, because the mean of its divisors is an integer number (42726342601506).

Almost surely, 2^{142421142005015} is an apocalyptic number.

142421142005015 is a deficient number, since it is larger than the sum of its proper divisors (28484228401009).

142421142005015 is an equidigital number, since it uses as much as digits as its factorization.

142421142005015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28484228401008.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 142421142005015 its reverse (510500241124241), we get a palindrome (652921383129256).

The spelling of 142421142005015 in words is "one hundred forty-two trillion, four hundred twenty-one billion, one hundred forty-two million, five thousand, fifteen".