133120321002 has 24 divisors (see below), whose sum is σ = 288459609984. Its totient is φ = 44368479144.

The previous prime is 133120321001. The next prime is 133120321007. The reversal of 133120321002 is 200123021331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (133120321001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246138 + ... + 571685.

It is an arithmetic number, because the mean of its divisors is an integer number (12019150416).

Almost surely, 2^133120321002 is an apocalyptic number.

133120321002 is an abundant number, since it is smaller than the sum of its proper divisors (155339288982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133120321002 is a wasteful number, since it uses less digits than its factorization.

133120321002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826874 (or 826871 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 133120321002 its reverse (200123021331), we get a palindrome (333243342333).

The spelling of 133120321002 in words is "one hundred thirty-three billion, one hundred twenty million, three hundred twenty-one thousand, two".