133331403001 has 4 divisors (see below), whose sum is σ = 134651516004. Its totient is φ = 132011290000.

The previous prime is 133331402993. The next prime is 133331403011. The reversal of 133331403001 is 100304133331.

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 87069845776 + 46261557225 = 295076^2 + 215085^2 .

It is a cyclic number.

It is not a de Polignac number, because 133331403001 - 2³ = 133331402993 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133331403011) 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, 660056350 + ... + 660056551.

It is an arithmetic number, because the mean of its divisors is an integer number (33662879001).

Almost surely, 2^133331403001 is an apocalyptic number.

It is an amenable number.

133331403001 is a deficient number, since it is larger than the sum of its proper divisors (1320113003).

133331403001 is a wasteful number, since it uses less digits than its factorization.

133331403001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320113002.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 133331403001 its reverse (100304133331), we get a palindrome (233635536332).

The spelling of 133331403001 in words is "one hundred thirty-three billion, three hundred thirty-one million, four hundred three thousand, one".