142021434513 has 16 divisors (see below), whose sum is σ = 222262632320. Its totient is φ = 78961723776.

The previous prime is 142021434491. The next prime is 142021434539. The reversal of 142021434513 is 315434120241.

It is not a de Polignac number, because 142021434513 - 2⁶ = 142021434449 is a prime.

It is a super-2 number, since 2×142021434513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142021434613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91390108 + ... + 91391661.

It is an arithmetic number, because the mean of its divisors is an integer number (13891414520).

Almost surely, 2^142021434513 is an apocalyptic number.

It is an amenable number.

142021434513 is a deficient number, since it is larger than the sum of its proper divisors (80241197807).

142021434513 is a wasteful number, since it uses less digits than its factorization.

142021434513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182781816.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 142021434513 its reverse (315434120241), we get a palindrome (457455554754).

The spelling of 142021434513 in words is "one hundred forty-two billion, twenty-one million, four hundred thirty-four thousand, five hundred thirteen".