146212442321 has 4 divisors (see below), whose sum is σ = 159504482544. Its totient is φ = 132920402100.

The previous prime is 146212442297. The next prime is 146212442393. The reversal of 146212442321 is 123244212641.

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 a de Polignac number, because none of the positive numbers 2^k-146212442321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146212402321) 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, 6646020095 + ... + 6646020116.

It is an arithmetic number, because the mean of its divisors is an integer number (39876120636).

Almost surely, 2^146212442321 is an apocalyptic number.

146212442321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

146212442321 is a deficient number, since it is larger than the sum of its proper divisors (13292040223).

146212442321 is a wasteful number, since it uses less digits than its factorization.

146212442321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292040222.

The product of its digits is 18432, while the sum is 32.

Adding to 146212442321 its reverse (123244212641), we get a palindrome (269456654962).

The spelling of 146212442321 in words is "one hundred forty-six billion, two hundred twelve million, four hundred forty-two thousand, three hundred twenty-one".