3213104130021 has 4 divisors (see below), whose sum is σ = 4284138840032. Its totient is φ = 2142069420012.

The previous prime is 3213104130001. The next prime is 3213104130059. The reversal of 3213104130021 is 1200314013123.

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 3213104130021 - 2²⁶ = 3213037021157 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 3213104130021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213104130001) 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, 535517355001 + ... + 535517355006.

It is an arithmetic number, because the mean of its divisors is an integer number (1071034710008).

Almost surely, 2^{3213104130021} is an apocalyptic number.

It is an amenable number.

3213104130021 is a deficient number, since it is larger than the sum of its proper divisors (1071034710011).

3213104130021 is a wasteful number, since it uses less digits than its factorization.

3213104130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071034710010.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3213104130021 its reverse (1200314013123), we get a palindrome (4413418143144).

The spelling of 3213104130021 in words is "three trillion, two hundred thirteen billion, one hundred four million, one hundred thirty thousand, twenty-one".