353020521313 has 4 divisors (see below), whose sum is σ = 354362804928. Its totient is φ = 351678237700.

The previous prime is 353020521307. The next prime is 353020521361. The reversal of 353020521313 is 313125020353.

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-353020521313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (353020521713) 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, 671141413 + ... + 671141938.

It is an arithmetic number, because the mean of its divisors is an integer number (88590701232).

Almost surely, 2^353020521313 is an apocalyptic number.

It is an amenable number.

353020521313 is a deficient number, since it is larger than the sum of its proper divisors (1342283615).

353020521313 is a wasteful number, since it uses less digits than its factorization.

353020521313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342283614.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 353020521313 its reverse (313125020353), we get a palindrome (666145541666).

The spelling of 353020521313 in words is "three hundred fifty-three billion, twenty million, five hundred twenty-one thousand, three hundred thirteen".