133144012420 has 12 divisors (see below), whose sum is σ = 279602426124. Its totient is φ = 53257604960.

The previous prime is 133144012403. The next prime is 133144012459. The reversal of 133144012420 is 24210441331.

133144012420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 103740679744 + 29403332676 = 322088^2 + 171474^2 .

It is a super-2 number, since 2×133144012420² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3328600291 + ... + 3328600330.

It is an arithmetic number, because the mean of its divisors is an integer number (23300202177).

Almost surely, 2^133144012420 is an apocalyptic number.

133144012420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133144012420 is an abundant number, since it is smaller than the sum of its proper divisors (146458413704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133144012420 is a wasteful number, since it uses less digits than its factorization.

133144012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657200630 (or 6657200628 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 133144012420 its reverse (24210441331), we get a palindrome (157354453751).

The spelling of 133144012420 in words is "one hundred thirty-three billion, one hundred forty-four million, twelve thousand, four hundred twenty".