3123132320221 has 8 divisors (see below), whose sum is σ = 3150831827520. Its totient is φ = 3095433886272.

The previous prime is 3123132320219. The next prime is 3123132320237. The reversal of 3123132320221 is 1220232313213.

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 3123132320221 - 2¹ = 3123132320219 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 (3123132320261) 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, 6282826 + ... + 6761668.

It is an arithmetic number, because the mean of its divisors is an integer number (393853978440).

Almost surely, 2^{3123132320221} is an apocalyptic number.

It is an amenable number.

3123132320221 is a deficient number, since it is larger than the sum of its proper divisors (27699507299).

3123132320221 is a wasteful number, since it uses less digits than its factorization.

3123132320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536675.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3123132320221 its reverse (1220232313213), we get a palindrome (4343364633434).

The spelling of 3123132320221 in words is "three trillion, one hundred twenty-three billion, one hundred thirty-two million, three hundred twenty thousand, two hundred twenty-one".