133321131001 has 4 divisors (see below), whose sum is σ = 133321883904. Its totient is φ = 133320378100.

The previous prime is 133321130993. The next prime is 133321131019. The reversal of 133321131001 is 100131123331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 133321131001 - 2³ = 133321130993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133321131001.

It is not an unprimeable number, because it can be changed into a prime (133321141001) 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, 50796 + ... + 518866.

It is an arithmetic number, because the mean of its divisors is an integer number (33330470976).

Almost surely, 2^133321131001 is an apocalyptic number.

It is an amenable number.

133321131001 is a deficient number, since it is larger than the sum of its proper divisors (752903).

133321131001 is an equidigital number, since it uses as much as digits as its factorization.

133321131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752902.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 133321131001 its reverse (100131123331), we get a palindrome (233452254332).

The spelling of 133321131001 in words is "one hundred thirty-three billion, three hundred twenty-one million, one hundred thirty-one thousand, one".