133421310203 has 4 divisors (see below), whose sum is σ = 133424393928. Its totient is φ = 133418226480.

The previous prime is 133421310163. The next prime is 133421310221. The reversal of 133421310203 is 302013124331.

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 133421310203 - 2¹⁶ = 133421244667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133421310263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476026 + ... + 1563807.

It is an arithmetic number, because the mean of its divisors is an integer number (33356098482).

Almost surely, 2^133421310203 is an apocalyptic number.

133421310203 is a deficient number, since it is larger than the sum of its proper divisors (3083725).

133421310203 is an equidigital number, since it uses as much as digits as its factorization.

133421310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083724.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 133421310203 its reverse (302013124331), we get a palindrome (435434434534).

The spelling of 133421310203 in words is "one hundred thirty-three billion, four hundred twenty-one million, three hundred ten thousand, two hundred three".