3121442144 has 36 divisors (see below), whose sum is σ = 6364609524. Its totient is φ = 1506890112.

The previous prime is 3121442143. The next prime is 3121442153. The reversal of 3121442144 is 4412441213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121442143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31082 + ... + 84905.

It is an arithmetic number, because the mean of its divisors is an integer number (176794709).

Almost surely, 2^3121442144 is an apocalyptic number.

It is an amenable number.

3121442144 is an abundant number, since it is smaller than the sum of its proper divisors (3243167380).

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

3121442144 is a wasteful number, since it uses less digits than its factorization.

3121442144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116055 (or 116018 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 3121442144 is about 55869.8679432841. The cubic root of 3121442144 is about 1461.4538192596.

Adding to 3121442144 its reverse (4412441213), we get a palindrome (7533883357).

The spelling of 3121442144 in words is "three billion, one hundred twenty-one million, four hundred forty-two thousand, one hundred forty-four".