142321132241 has 4 divisors (see below), whose sum is σ = 142331781684. Its totient is φ = 142310482800.

The previous prime is 142321132211. The next prime is 142321132243. The reversal of 142321132241 is 142231123241.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6495715216 + 135825417025 = 80596^2 + 368545^2 .

It is a cyclic number.

It is not a de Polignac number, because 142321132241 - 2¹⁴ = 142321115857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142321132241.

It is not an unprimeable number, because it can be changed into a prime (142321132243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5304650 + ... + 5331411.

It is an arithmetic number, because the mean of its divisors is an integer number (35582945421).

Almost surely, 2^142321132241 is an apocalyptic number.

It is an amenable number.

142321132241 is a deficient number, since it is larger than the sum of its proper divisors (10649443).

142321132241 is a wasteful number, since it uses less digits than its factorization.

142321132241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649442.

The product of its digits is 2304, while the sum is 26.

Adding to 142321132241 its reverse (142231123241), we get a palindrome (284552255482).

The spelling of 142321132241 in words is "one hundred forty-two billion, three hundred twenty-one million, one hundred thirty-two thousand, two hundred forty-one".