312403340431001 has 4 divisors (see below), whose sum is σ = 313989144189732. Its totient is φ = 310817536672272.

The previous prime is 312403340430997. The next prime is 312403340431003. The reversal of 312403340431001 is 100134043304213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 282388665971776 + 30014674459225 = 16804424^2 + 5478565^2 .

It is a cyclic number.

It is not a de Polignac number, because 312403340431001 - 2² = 312403340430997 is a prime.

It is a super-2 number, since 2×312403340431001² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312403340431003) 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 3 ways as a sum of consecutive naturals, for example, 792901879070 + ... + 792901879463.

It is an arithmetic number, because the mean of its divisors is an integer number (78497286047433).

Almost surely, 2^{312403340431001} is an apocalyptic number.

It is an amenable number.

312403340431001 is a deficient number, since it is larger than the sum of its proper divisors (1585803758731).

312403340431001 is a wasteful number, since it uses less digits than its factorization.

312403340431001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585803758730.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 312403340431001 its reverse (100134043304213), we get a palindrome (412537383735214).

The spelling of 312403340431001 in words is "three hundred twelve trillion, four hundred three billion, three hundred forty million, four hundred thirty-one thousand, one".