3131441380 has 24 divisors (see below), whose sum is σ = 6636362040. Its totient is φ = 1241084160.

The previous prime is 3131441353. The next prime is 3131441381. The reversal of 3131441380 is 831441313.

It can be written as a sum of positive squares in 4 ways, for example, as 472801536 + 2658639844 = 21744^2 + 51562^2 .

It is not an unprimeable number, because it can be changed into a prime (3131441381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716041 + ... + 720400.

It is an arithmetic number, because the mean of its divisors is an integer number (276515085).

Almost surely, 2^3131441380 is an apocalyptic number.

It is an amenable number.

3131441380 is an abundant number, since it is smaller than the sum of its proper divisors (3504920660).

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

3131441380 is a wasteful number, since it uses less digits than its factorization.

3131441380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436559 (or 1436557 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3131441380 is about 55959.2832334368. The cubic root of 3131441380 is about 1463.0126975446.

Adding to 3131441380 its reverse (831441313), we get a palindrome (3962882693).

The spelling of 3131441380 in words is "three billion, one hundred thirty-one million, four hundred forty-one thousand, three hundred eighty".