3213353313021 has 4 divisors (see below), whose sum is σ = 4284471084032. Its totient is φ = 2142235542012.

The previous prime is 3213353312987. The next prime is 3213353313041. The reversal of 3213353313021 is 1203133533123.

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 3213353313021 - 2¹⁵ = 3213353280253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3213353313021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213353313041) 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, 535558885501 + ... + 535558885506.

It is an arithmetic number, because the mean of its divisors is an integer number (1071117771008).

Almost surely, 2^{3213353313021} is an apocalyptic number.

It is an amenable number.

3213353313021 is a deficient number, since it is larger than the sum of its proper divisors (1071117771011).

3213353313021 is a wasteful number, since it uses less digits than its factorization.

3213353313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071117771010.

The product of its (nonzero) digits is 14580, while the sum is 30.

Adding to 3213353313021 its reverse (1203133533123), we get a palindrome (4416486846144).

The spelling of 3213353313021 in words is "three trillion, two hundred thirteen billion, three hundred fifty-three million, three hundred thirteen thousand, twenty-one".