133531443301 has 4 divisors (see below), whose sum is σ = 133537084012. Its totient is φ = 133525802592.

The previous prime is 133531443293. The next prime is 133531443313. The reversal of 133531443301 is 103344135331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53782248100 + 79749195201 = 231910^2 + 282399^2 .

It is a cyclic number.

It is not a de Polignac number, because 133531443301 - 2³ = 133531443293 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 (133531483301) 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, 2784696 + ... + 2832241.

It is an arithmetic number, because the mean of its divisors is an integer number (33384271003).

Almost surely, 2^133531443301 is an apocalyptic number.

It is an amenable number.

133531443301 is a deficient number, since it is larger than the sum of its proper divisors (5640711).

133531443301 is an equidigital number, since it uses as much as digits as its factorization.

133531443301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640710.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 133531443301 its reverse (103344135331), we get a palindrome (236875578632).

The spelling of 133531443301 in words is "one hundred thirty-three billion, five hundred thirty-one million, four hundred forty-three thousand, three hundred one".