312040325431 has 16 divisors (see below), whose sum is σ = 321698606400. Its totient is φ = 302530636800.

The previous prime is 312040325393. The next prime is 312040325447. The reversal of 312040325431 is 134523040213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312040325431 - 2¹⁷ = 312040194359 is a prime.

It is a super-2 number, since 2×312040325431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312040325431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312040385431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34942375 + ... + 34951303.

It is an arithmetic number, because the mean of its divisors is an integer number (20106162900).

Almost surely, 2^312040325431 is an apocalyptic number.

312040325431 is a deficient number, since it is larger than the sum of its proper divisors (9658280969).

312040325431 is an equidigital number, since it uses as much as digits as its factorization.

312040325431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17130.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 312040325431 its reverse (134523040213), we get a palindrome (446563365644).

The spelling of 312040325431 in words is "three hundred twelve billion, forty million, three hundred twenty-five thousand, four hundred thirty-one".