3131146403 has 18 divisors (see below), whose sum is σ = 4003586748. Its totient is φ = 2439849720.

The previous prime is 3131146399. The next prime is 3131146427. The reversal of 3131146403 is 3046411313.

It is not a de Polignac number, because 3131146403 - 2² = 3131146399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131146453) 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 17 ways as a sum of consecutive naturals, for example, 258125 + ... + 269982.

It is an arithmetic number, because the mean of its divisors is an integer number (222421486).

Almost surely, 2^3131146403 is an apocalyptic number.

3131146403 is a deficient number, since it is larger than the sum of its proper divisors (872440345).

3131146403 is a wasteful number, since it uses less digits than its factorization.

3131146403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528143 (or 528125 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3131146403 is about 55956.6475318170. The cubic root of 3131146403 is about 1462.9667582475.

Adding to 3131146403 its reverse (3046411313), we get a palindrome (6177557716).

The spelling of 3131146403 in words is "three billion, one hundred thirty-one million, one hundred forty-six thousand, four hundred three".