312305293093 has 4 divisors (see below), whose sum is σ = 315814341420. Its totient is φ = 308796244768.

The previous prime is 312305293061. The next prime is 312305293103. The reversal of 312305293093 is 390392503213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390392503213 = 403607 ⋅967259.

It can be written as a sum of positive squares in 2 ways, for example, as 164639554564 + 147665738529 = 405758^2 + 384273^2 .

It is a cyclic number.

It is not a de Polignac number, because 312305293093 - 2⁵ = 312305293061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312305293493) 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 3 ways as a sum of consecutive naturals, for example, 1754524030 + ... + 1754524207.

It is an arithmetic number, because the mean of its divisors is an integer number (78953585355).

Almost surely, 2^312305293093 is an apocalyptic number.

It is an amenable number.

312305293093 is a deficient number, since it is larger than the sum of its proper divisors (3509048327).

312305293093 is an equidigital number, since it uses as much as digits as its factorization.

312305293093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509048326.

The product of its (nonzero) digits is 131220, while the sum is 40.

The spelling of 312305293093 in words is "three hundred twelve billion, three hundred five million, two hundred ninety-three thousand, ninety-three".