3131244121 has 8 divisors (see below), whose sum is σ = 3151209600. Its totient is φ = 3111300432.

The previous prime is 3131244119. The next prime is 3131244163. The reversal of 3131244121 is 1214421313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3131244121 - 2¹ = 3131244119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131244092 and 3131244101.

It is not an unprimeable number, because it can be changed into a prime (3131241121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358816 + ... + 367438.

It is an arithmetic number, because the mean of its divisors is an integer number (393901200).

Almost surely, 2^3131244121 is an apocalyptic number.

It is an amenable number.

3131244121 is a deficient number, since it is larger than the sum of its proper divisors (19965479).

3131244121 is a wasteful number, since it uses less digits than its factorization.

3131244121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10895.

The product of its digits is 576, while the sum is 22.

The square root of 3131244121 is about 55957.5206831039. The cubic root of 3131244121 is about 1462.9819770289.

Adding to 3131244121 its reverse (1214421313), we get a palindrome (4345665434).

The spelling of 3131244121 in words is "three billion, one hundred thirty-one million, two hundred forty-four thousand, one hundred twenty-one".