142021402441 has 4 divisors (see below), whose sum is σ = 142089066000. Its totient is φ = 141953738884.

The previous prime is 142021402429. The next prime is 142021402447. The reversal of 142021402441 is 144204120241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142021402441 - 2³³ = 133431467849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142021402447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33828631 + ... + 33832828.

It is an arithmetic number, because the mean of its divisors is an integer number (35522266500).

Almost surely, 2^142021402441 is an apocalyptic number.

It is an amenable number.

142021402441 is a deficient number, since it is larger than the sum of its proper divisors (67663559).

142021402441 is an equidigital number, since it uses as much as digits as its factorization.

142021402441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67663558.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 142021402441 its reverse (144204120241), we get a palindrome (286225522682).

The spelling of 142021402441 in words is "one hundred forty-two billion, twenty-one million, four hundred two thousand, four hundred forty-one".