133130010021 has 4 divisors (see below), whose sum is σ = 177506680032. Its totient is φ = 88753340012.

The previous prime is 133130010017. The next prime is 133130010047. The reversal of 133130010021 is 120010031331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133130010021 - 2² = 133130010017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133130017021) 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, 22188335001 + ... + 22188335006.

It is an arithmetic number, because the mean of its divisors is an integer number (44376670008).

Almost surely, 2^133130010021 is an apocalyptic number.

It is an amenable number.

133130010021 is a deficient number, since it is larger than the sum of its proper divisors (44376670011).

133130010021 is an equidigital number, since it uses as much as digits as its factorization.

133130010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44376670010.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 133130010021 its reverse (120010031331), we get a palindrome (253140041352).

The spelling of 133130010021 in words is "one hundred thirty-three billion, one hundred thirty million, ten thousand, twenty-one".