3121243420404 has 48 divisors (see below), whose sum is σ = 7335643392000. Its totient is φ = 1032880600416.

The previous prime is 3121243420391. The next prime is 3121243420409. The reversal of 3121243420404 is 4040243421213.

It is a super-2 number, since 2×3121243420404² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121243420409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58097947 + ... + 58151645.

It is an arithmetic number, because the mean of its divisors is an integer number (152825904000).

Almost surely, 2^{3121243420404} is an apocalyptic number.

It is an amenable number.

3121243420404 is an abundant number, since it is smaller than the sum of its proper divisors (4214399971596).

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

3121243420404 is a wasteful number, since it uses less digits than its factorization.

3121243420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88692 (or 88690 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 3121243420404 its reverse (4040243421213), we get a palindrome (7161486841617).

The spelling of 3121243420404 in words is "three trillion, one hundred twenty-one billion, two hundred forty-three million, four hundred twenty thousand, four hundred four".