3121122453104 has 80 divisors (see below), whose sum is σ = 6291562939200. Its totient is φ = 1498118995968.

The previous prime is 3121122453101. The next prime is 3121122453109. The reversal of 3121122453104 is 4013542211213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121122453101) 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, 182587982 + ... + 182605074.

It is an arithmetic number, because the mean of its divisors is an integer number (78644536740).

Almost surely, 2^{3121122453104} 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 3121122453104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3145781469600).

3121122453104 is an abundant number, since it is smaller than the sum of its proper divisors (3170440486096).

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

3121122453104 is a wasteful number, since it uses less digits than its factorization.

3121122453104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19362 (or 19356 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 3121122453104 its reverse (4013542211213), we get a palindrome (7134664664317).

The spelling of 3121122453104 in words is "three trillion, one hundred twenty-one billion, one hundred twenty-two million, four hundred fifty-three thousand, one hundred four".