133133331021 has 16 divisors (see below), whose sum is σ = 187960694400. Its totient is φ = 83531191808.

The previous prime is 133133330983. The next prime is 133133331041. The reversal of 133133331021 is 120133331331.

It is a cyclic number.

It is not a de Polignac number, because 133133331021 - 2¹⁰ = 133133329997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133133330982 and 133133331000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133133331041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841800 + ... + 1912718.

It is an arithmetic number, because the mean of its divisors is an integer number (11747543400).

Almost surely, 2^133133331021 is an apocalyptic number.

It is an amenable number.

133133331021 is a deficient number, since it is larger than the sum of its proper divisors (54827363379).

133133331021 is a wasteful number, since it uses less digits than its factorization.

133133331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107748.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 133133331021 its reverse (120133331331), we get a palindrome (253266662352).

The spelling of 133133331021 in words is "one hundred thirty-three billion, one hundred thirty-three million, three hundred thirty-one thousand, twenty-one".