3421515404321 has 4 divisors (see below), whose sum is σ = 3910303319232. Its totient is φ = 2932727489412.

The previous prime is 3421515404249. The next prime is 3421515404339. The reversal of 3421515404321 is 1234045151243.

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 not a de Polignac number, because 3421515404321 - 2³⁰ = 3420441662497 is a prime.

It is a super-2 number, since 2×3421515404321² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3421515404341) 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, 244393957445 + ... + 244393957458.

It is an arithmetic number, because the mean of its divisors is an integer number (977575829808).

Almost surely, 2^{3421515404321} is an apocalyptic number.

It is an amenable number.

3421515404321 is a deficient number, since it is larger than the sum of its proper divisors (488787914911).

3421515404321 is an equidigital number, since it uses as much as digits as its factorization.

3421515404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488787914910.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 3421515404321 in words is "three trillion, four hundred twenty-one billion, five hundred fifteen million, four hundred four thousand, three hundred twenty-one".