3121211032104 has 64 divisors (see below), whose sum is σ = 8720013113280. Its totient is φ = 922752704000.

The previous prime is 3121211032097. The next prime is 3121211032127. The reversal of 3121211032104 is 4012301121213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144169287 + ... + 144190934.

It is an arithmetic number, because the mean of its divisors is an integer number (136250204895).

Almost surely, 2^{3121211032104} is an apocalyptic number.

It is an amenable number.

3121211032104 is an abundant number, since it is smaller than the sum of its proper divisors (5598802081176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121211032104 is a wasteful number, since it uses less digits than its factorization.

3121211032104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288360282 (or 288360278 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 3121211032104 its reverse (4012301121213), we get a palindrome (7133512153317).

The spelling of 3121211032104 in words is "three trillion, one hundred twenty-one billion, two hundred eleven million, thirty-two thousand, one hundred four".