133310213021 has 8 divisors (see below), whose sum is σ = 135262613304. Its totient is φ = 131369610240.

The previous prime is 133310213011. The next prime is 133310213041. The reversal of 133310213021 is 120312013331.

It can be written as a sum of positive squares in 4 ways, for example, as 514836100 + 132795376921 = 22690^2 + 364411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133310213021 - 2¹⁸ = 133309950877 is a prime.

It is a super-2 number, since 2×133310213021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133310212984 and 133310213002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133310213011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926610 + ... + 2971811.

It is an arithmetic number, because the mean of its divisors is an integer number (16907826663).

Almost surely, 2^133310213021 is an apocalyptic number.

It is an amenable number.

133310213021 is a deficient number, since it is larger than the sum of its proper divisors (1952400283).

133310213021 is an equidigital number, since it uses as much as digits as its factorization.

133310213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898751.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133310213021 its reverse (120312013331), we get a palindrome (253622226352).

The spelling of 133310213021 in words is "one hundred thirty-three billion, three hundred ten million, two hundred thirteen thousand, twenty-one".