3121436124 has 72 divisors (see below), whose sum is σ = 8110262160. Its totient is φ = 1011859200.

The previous prime is 3121436111. The next prime is 3121436179. The reversal of 3121436124 is 4216341213.

It is a happy number.

3121436124 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 43 + 612 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187459 + ... + 203429.

It is an arithmetic number, because the mean of its divisors is an integer number (112642530).

Almost surely, 2^3121436124 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 3121436124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4055131080).

3121436124 is an abundant number, since it is smaller than the sum of its proper divisors (4988826036).

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

3121436124 is a wasteful number, since it uses less digits than its factorization.

3121436124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16131 (or 16126 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3121436124 is about 55869.8140680636. The cubic root of 3121436124 is about 1461.4528797411.

Adding to 3121436124 its reverse (4216341213), we get a palindrome (7337777337).

The spelling of 3121436124 in words is "three billion, one hundred twenty-one million, four hundred thirty-six thousand, one hundred twenty-four".