133310313210421 has 4 divisors (see below), whose sum is σ = 133310354279872. Its totient is φ = 133310272140972.

The previous prime is 133310313210397. The next prime is 133310313210461. The reversal of 133310313210421 is 124012313013331.

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 a de Polignac number, because none of the positive numbers 2^k-133310313210421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133310313210421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133310313210461) 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, 15204591 + ... + 22311436.

It is an arithmetic number, because the mean of its divisors is an integer number (33327588569968).

Almost surely, 2^{133310313210421} is an apocalyptic number.

It is an amenable number.

133310313210421 is a deficient number, since it is larger than the sum of its proper divisors (41069451).

133310313210421 is an equidigital number, since it uses as much as digits as its factorization.

133310313210421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41069450.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 133310313210421 its reverse (124012313013331), we get a palindrome (257322626223752).

The spelling of 133310313210421 in words is "one hundred thirty-three trillion, three hundred ten billion, three hundred thirteen million, two hundred ten thousand, four hundred twenty-one".