133230203121021 has 4 divisors (see below), whose sum is σ = 177640270828032. Its totient is φ = 88820135414012.

The previous prime is 133230203121011. The next prime is 133230203121031. The reversal of 133230203121021 is 120121302032331.

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 an interprime number because it is at equal distance from previous prime (133230203121011) and next prime (133230203121031).

It is a cyclic number.

It is not a de Polignac number, because 133230203121021 - 2⁴² = 128832156609917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133230203120982 and 133230203121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133230203121011) 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, 22205033853501 + ... + 22205033853506.

It is an arithmetic number, because the mean of its divisors is an integer number (44410067707008).

Almost surely, 2^{133230203121021} is an apocalyptic number.

It is an amenable number.

133230203121021 is a deficient number, since it is larger than the sum of its proper divisors (44410067707011).

133230203121021 is an equidigital number, since it uses as much as digits as its factorization.

133230203121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44410067707010.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 133230203121021 its reverse (120121302032331), we get a palindrome (253351505153352).

The spelling of 133230203121021 in words is "one hundred thirty-three trillion, two hundred thirty billion, two hundred three million, one hundred twenty-one thousand, twenty-one".