312348510861 has 8 divisors (see below), whose sum is σ = 416594717280. Its totient is φ = 208167322512.

The previous prime is 312348510857. The next prime is 312348510869. The reversal of 312348510861 is 168015843213.

It is a happy number.

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

It is not a de Polignac number, because 312348510861 - 2² = 312348510857 is a prime.

It is a super-2 number, since 2×312348510861² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312348510869) 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 7 ways as a sum of consecutive naturals, for example, 16243306 + ... + 16262523.

It is an arithmetic number, because the mean of its divisors is an integer number (52074339660).

Almost surely, 2^312348510861 is an apocalyptic number.

It is an amenable number.

312348510861 is a deficient number, since it is larger than the sum of its proper divisors (104246206419).

312348510861 is a wasteful number, since it uses less digits than its factorization.

312348510861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32509035.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 312348510861 in words is "three hundred twelve billion, three hundred forty-eight million, five hundred ten thousand, eight hundred sixty-one".