313330411333421 has 4 divisors (see below), whose sum is σ = 313406223196092. Its totient is φ = 313254599470752.

The previous prime is 313330411333409. The next prime is 313330411333493. The reversal of 313330411333421 is 124333114033313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264992459830921 + 48337951502500 = 16278589^2 + 6952550^2 .

It is a cyclic number.

It is not a de Polignac number, because 313330411333421 - 2³⁴ = 313313231464237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313330411330421) 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, 37905925136 + ... + 37905933401.

It is an arithmetic number, because the mean of its divisors is an integer number (78351555799023).

Almost surely, 2^{313330411333421} is an apocalyptic number.

It is an amenable number.

313330411333421 is a deficient number, since it is larger than the sum of its proper divisors (75811862671).

313330411333421 is an equidigital number, since it uses as much as digits as its factorization.

313330411333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75811862670.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 313330411333421 its reverse (124333114033313), we get a palindrome (437663525366734).

The spelling of 313330411333421 in words is "three hundred thirteen trillion, three hundred thirty billion, four hundred eleven million, three hundred thirty-three thousand, four hundred twenty-one".