133244142321 has 8 divisors (see below), whose sum is σ = 177664404544. Its totient is φ = 88826654160.

The previous prime is 133244142319. The next prime is 133244142329. The reversal of 133244142321 is 123241442331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133244142321 - 2¹ = 133244142319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133244142329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578725 + ... + 775506.

It is an arithmetic number, because the mean of its divisors is an integer number (22208050568).

Almost surely, 2^133244142321 is an apocalyptic number.

It is an amenable number.

133244142321 is a deficient number, since it is larger than the sum of its proper divisors (44420262223).

133244142321 is a wasteful number, since it uses less digits than its factorization.

133244142321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387031.

The product of its digits is 13824, while the sum is 30.

Adding to 133244142321 its reverse (123241442331), we get a palindrome (256485584652).

The spelling of 133244142321 in words is "one hundred thirty-three billion, two hundred forty-four million, one hundred forty-two thousand, three hundred twenty-one".