3131061442 has 32 divisors (see below), whose sum is σ = 4958553600. Its totient is φ = 1480809600.

The previous prime is 3131061421. The next prime is 3131061449. The reversal of 3131061442 is 2441601313.

It is not an unprimeable number, because it can be changed into a prime (3131061449) 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 15 ways as a sum of consecutive naturals, for example, 659734 + ... + 664462.

It is an arithmetic number, because the mean of its divisors is an integer number (154954800).

Almost surely, 2^3131061442 is an apocalyptic number.

3131061442 is a deficient number, since it is larger than the sum of its proper divisors (1827492158).

3131061442 is a wasteful number, since it uses less digits than its factorization.

3131061442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 3131061442 is about 55955.8883585990. Note that the first 3 decimals coincide. The cubic root of 3131061442 is about 1462.9535260074.

Adding to 3131061442 its reverse (2441601313), we get a palindrome (5572662755).

The spelling of 3131061442 in words is "three billion, one hundred thirty-one million, sixty-one thousand, four hundred forty-two".