133243335503 has 8 divisors (see below), whose sum is σ = 140740148736. Its totient is φ = 125946437400.

The previous prime is 133243335499. The next prime is 133243335529. The reversal of 133243335503 is 305533342331.

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

It is a cyclic number.

It is not a de Polignac number, because 133243335503 - 2² = 133243335499 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 (133243335593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49977413 + ... + 49980078.

It is an arithmetic number, because the mean of its divisors is an integer number (17592518592).

Almost surely, 2^133243335503 is an apocalyptic number.

133243335503 is a deficient number, since it is larger than the sum of its proper divisors (7496813233).

133243335503 is an equidigital number, since it uses as much as digits as its factorization.

133243335503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99957565.

The product of its (nonzero) digits is 145800, while the sum is 35.

Adding to 133243335503 its reverse (305533342331), we get a palindrome (438776677834).

The spelling of 133243335503 in words is "one hundred thirty-three billion, two hundred forty-three million, three hundred thirty-five thousand, five hundred three".