142066810321 has 4 divisors (see below), whose sum is σ = 142917509952. Its totient is φ = 141216110692.

The previous prime is 142066810267. The next prime is 142066810337. The reversal of 142066810321 is 123018660241.

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 142066810321 - 2¹⁵ = 142066777553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142066810381) 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, 425349565 + ... + 425349898.

It is an arithmetic number, because the mean of its divisors is an integer number (35729377488).

Almost surely, 2^142066810321 is an apocalyptic number.

It is an amenable number.

142066810321 is a deficient number, since it is larger than the sum of its proper divisors (850699631).

142066810321 is an equidigital number, since it uses as much as digits as its factorization.

142066810321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850699630.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 142066810321 in words is "one hundred forty-two billion, sixty-six million, eight hundred ten thousand, three hundred twenty-one".