3121241004621 has 24 divisors (see below), whose sum is σ = 4647838433784. Its totient is φ = 2017144995840.

The previous prime is 3121241004617. The next prime is 3121241004689. The reversal of 3121241004621 is 1264001421213.

3121241004621 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 24 + 10 + 0 + 4 + 621 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 283316675625 + 2837924328996 = 532275^2 + 1684614^2 .

It is not a de Polignac number, because 3121241004621 - 2² = 3121241004617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121241004691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26880436 + ... + 26996301.

It is an arithmetic number, because the mean of its divisors is an integer number (193659934741).

Almost surely, 2^{3121241004621} is an apocalyptic number.

It is an amenable number.

3121241004621 is a deficient number, since it is larger than the sum of its proper divisors (1526597429163).

3121241004621 is a wasteful number, since it uses less digits than its factorization.

3121241004621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53876941 (or 53876938 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 3121241004621 its reverse (1264001421213), we get a palindrome (4385242425834).

The spelling of 3121241004621 in words is "three trillion, one hundred twenty-one billion, two hundred forty-one million, four thousand, six hundred twenty-one".