312001030043 has 2 divisors, whose sum is σ = 312001030044. Its totient is φ = 312001030042.

The previous prime is 312001030021. The next prime is 312001030091. The reversal of 312001030043 is 340030100213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312001030043 is a prime.

It is not a weakly prime, because it can be changed into another prime (312001030343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156000515021 + 156000515022.

It is an arithmetic number, because the mean of its divisors is an integer number (156000515022).

Almost surely, 2^312001030043 is an apocalyptic number.

312001030043 is a deficient number, since it is larger than the sum of its proper divisors (1).

312001030043 is an equidigital number, since it uses as much as digits as its factorization.

312001030043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 312001030043 its reverse (340030100213), we get a palindrome (652031130256).

The spelling of 312001030043 in words is "three hundred twelve billion, one million, thirty thousand, forty-three".