3521421355013 has 8 divisors (see below), whose sum is σ = 3523163130816. Its totient is φ = 3519679996800.

The previous prime is 3521421355009. The next prime is 3521421355043. The reversal of 3521421355013 is 3105531241253.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3521421355013 - 2² = 3521421355009 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 (3521421355003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17490920 + ... + 17691102.

It is an arithmetic number, because the mean of its divisors is an integer number (440395391352).

Almost surely, 2^{3521421355013} is an apocalyptic number.

It is an amenable number.

3521421355013 is a deficient number, since it is larger than the sum of its proper divisors (1741775803).

3521421355013 is a wasteful number, since it uses less digits than its factorization.

3521421355013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208795.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 3521421355013 its reverse (3105531241253), we get a palindrome (6626952596266).

The spelling of 3521421355013 in words is "three trillion, five hundred twenty-one billion, four hundred twenty-one million, three hundred fifty-five thousand, thirteen".