3131343005 has 16 divisors (see below), whose sum is σ = 4442497920. Its totient is φ = 2073164352.

The previous prime is 3131343001. The next prime is 3131343011. The reversal of 3131343005 is 5003431313.

It is a happy number.

It is not a de Polignac number, because 3131343005 - 2² = 3131343001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131343001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1541519 + ... + 1543548.

It is an arithmetic number, because the mean of its divisors is an integer number (277656120).

Almost surely, 2^3131343005 is an apocalyptic number.

3131343005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3131343005 is a deficient number, since it is larger than the sum of its proper divisors (1311154915).

3131343005 is a wasteful number, since it uses less digits than its factorization.

3131343005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085108.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 3131343005 is about 55958.4042392204. The cubic root of 3131343005 is about 1462.9973770831.

Adding to 3131343005 its reverse (5003431313), we get a palindrome (8134774318).

The spelling of 3131343005 in words is "three billion, one hundred thirty-one million, three hundred forty-three thousand, five".