312403404131 has 8 divisors (see below), whose sum is σ = 384496497504. Its totient is φ = 247176319680.

The previous prime is 312403404083. The next prime is 312403404149. The reversal of 312403404131 is 131404304213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 312403404131 - 2⁶ = 312403404067 is a prime.

It is a super-2 number, since 2×312403404131² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312403404131.

It is not an unprimeable number, because it can be changed into a prime (312403404631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1716502130 + ... + 1716502311.

It is an arithmetic number, because the mean of its divisors is an integer number (48062062188).

Almost surely, 2^312403404131 is an apocalyptic number.

312403404131 is a deficient number, since it is larger than the sum of its proper divisors (72093093373).

312403404131 is a wasteful number, since it uses less digits than its factorization.

312403404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433004461.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312403404131 its reverse (131404304213), we get a palindrome (443807708344).

The spelling of 312403404131 in words is "three hundred twelve billion, four hundred three million, four hundred four thousand, one hundred thirty-one".