133103423 has 4 divisors (see below), whose sum is σ = 133202160. Its totient is φ = 133004688.

The previous prime is 133103419. The next prime is 133103449. The reversal of 133103423 is 324301331.

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

It is a cyclic number.

It is not a de Polignac number, because 133103423 - 2² = 133103419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133103395 and 133103404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133103413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47318 + ... + 50051.

It is an arithmetic number, because the mean of its divisors is an integer number (33300540).

Almost surely, 2^133103423 is an apocalyptic number.

133103423 is a deficient number, since it is larger than the sum of its proper divisors (98737).

133103423 is an equidigital number, since it uses as much as digits as its factorization.

133103423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98736.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133103423 is about 11537.0456790289. The cubic root of 133103423 is about 510.5791485631.

Adding to 133103423 its reverse (324301331), we get a palindrome (457404754).

The spelling of 133103423 in words is "one hundred thirty-three million, one hundred three thousand, four hundred twenty-three".