312034430243 has 4 divisors (see below), whose sum is σ = 314128621200. Its totient is φ = 309940239288.

The previous prime is 312034430237. The next prime is 312034430249. The reversal of 312034430243 is 342034430213.

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

It is an interprime number because it is at equal distance from previous prime (312034430237) and next prime (312034430249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312034430243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312034430249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047095255 + ... + 1047095552.

It is an arithmetic number, because the mean of its divisors is an integer number (78532155300).

Almost surely, 2^312034430243 is an apocalyptic number.

312034430243 is a deficient number, since it is larger than the sum of its proper divisors (2094190957).

312034430243 is a wasteful number, since it uses less digits than its factorization.

312034430243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094190956.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 312034430243 its reverse (342034430213), we get a palindrome (654068860456).

The spelling of 312034430243 in words is "three hundred twelve billion, thirty-four million, four hundred thirty thousand, two hundred forty-three".