3131313046 has 8 divisors (see below), whose sum is σ = 4756425120. Its totient is φ = 1545838008.

The previous prime is 3131313041. The next prime is 3131313109. The reversal of 3131313046 is 6403131313.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3131313046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131313041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9909061 + ... + 9909376.

It is an arithmetic number, because the mean of its divisors is an integer number (594553140).

Almost surely, 2^3131313046 is an apocalyptic number.

3131313046 is a deficient number, since it is larger than the sum of its proper divisors (1625112074).

3131313046 is a wasteful number, since it uses less digits than its factorization.

3131313046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19818518.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3131313046 is about 55958.1365486736. The cubic root of 3131313046 is about 1462.9927113451.

Adding to 3131313046 its reverse (6403131313), we get a palindrome (9534444359).

The spelling of 3131313046 in words is "three billion, one hundred thirty-one million, three hundred thirteen thousand, forty-six".