353530341043421 has 4 divisors (see below), whose sum is σ = 353966260083744. Its totient is φ = 353094422003100.

The previous prime is 353530341043409. The next prime is 353530341043493. The reversal of 353530341043421 is 124340143035353.

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-353530341043421 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 (353530341042421) 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, 217959518945 + ... + 217959520566.

It is an arithmetic number, because the mean of its divisors is an integer number (88491565020936).

Almost surely, 2^{353530341043421} is an apocalyptic number.

It is an amenable number.

353530341043421 is a deficient number, since it is larger than the sum of its proper divisors (435919040323).

353530341043421 is an equidigital number, since it uses as much as digits as its factorization.

353530341043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435919040322.

The product of its (nonzero) digits is 777600, while the sum is 41.

Adding to 353530341043421 its reverse (124340143035353), we get a palindrome (477870484078774).

The spelling of 353530341043421 in words is "three hundred fifty-three trillion, five hundred thirty billion, three hundred forty-one million, forty-three thousand, four hundred twenty-one".