133144431013 has 16 divisors (see below), whose sum is σ = 146614896576. Its totient is φ = 119902890240.

The previous prime is 133144431011. The next prime is 133144431053. The reversal of 133144431013 is 310134441331.

It is a cyclic number.

It is not a de Polignac number, because 133144431013 - 2¹ = 133144431011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133144431011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2291995 + ... + 2349367.

It is an arithmetic number, because the mean of its divisors is an integer number (9163431036).

Almost surely, 2^133144431013 is an apocalyptic number.

It is an amenable number.

133144431013 is a deficient number, since it is larger than the sum of its proper divisors (13470465563).

133144431013 is a wasteful number, since it uses less digits than its factorization.

133144431013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59364.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 133144431013 its reverse (310134441331), we get a palindrome (443278872344).

The spelling of 133144431013 in words is "one hundred thirty-three billion, one hundred forty-four million, four hundred thirty-one thousand, thirteen".