3121410040544 has 96 divisors (see below), whose sum is σ = 6484313515680. Its totient is φ = 1475000451072.

The previous prime is 3121410040531. The next prime is 3121410040547. The reversal of 3121410040544 is 4450400141213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121410040547) 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, 740194724 + ... + 740198940.

It is an arithmetic number, because the mean of its divisors is an integer number (67544932455).

Almost surely, 2^{3121410040544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121410040544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3242156757840).

3121410040544 is an abundant number, since it is smaller than the sum of its proper divisors (3362903475136).

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

3121410040544 is a wasteful number, since it uses less digits than its factorization.

3121410040544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892 (or 6884 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 3121410040544 its reverse (4450400141213), we get a palindrome (7571810181757).

The spelling of 3121410040544 in words is "three trillion, one hundred twenty-one billion, four hundred ten million, forty thousand, five hundred forty-four".