142032430521 has 12 divisors (see below), whose sum is σ = 205161879780. Its totient is φ = 94686475680.

The previous prime is 142032430513. The next prime is 142032430531. The reversal of 142032430521 is 125034230241.

142032430521 is a `hidden beast` number, since 1 + 4 + 203 + 2 + 430 + 5 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 76363242921 + 65669187600 = 276339^2 + 256260^2 .

It is not a de Polignac number, because 142032430521 - 2³ = 142032430513 is a prime.

It is a super-2 number, since 2×142032430521² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142032430531) 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, 488035 + ... + 722663.

It is an arithmetic number, because the mean of its divisors is an integer number (17096823315).

Almost surely, 2^142032430521 is an apocalyptic number.

It is an amenable number.

142032430521 is a deficient number, since it is larger than the sum of its proper divisors (63129449259).

142032430521 is a wasteful number, since it uses less digits than its factorization.

142032430521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301896 (or 301893 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 142032430521 its reverse (125034230241), we get a palindrome (267066660762).

The spelling of 142032430521 in words is "one hundred forty-two billion, thirty-two million, four hundred thirty thousand, five hundred twenty-one".