312021101230043 has 2 divisors, whose sum is σ = 312021101230044. Its totient is φ = 312021101230042.

The previous prime is 312021101229991. The next prime is 312021101230051. The reversal of 312021101230043 is 340032101120213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312021101230043 - 2⁶ = 312021101229979 is a prime.

It is a super-2 number, since 2×312021101230043² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (312021101230543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156010550615021 + 156010550615022.

It is an arithmetic number, because the mean of its divisors is an integer number (156010550615022).

Almost surely, 2^{312021101230043} is an apocalyptic number.

312021101230043 is a deficient number, since it is larger than the sum of its proper divisors (1).

312021101230043 is an equidigital number, since it uses as much as digits as its factorization.

312021101230043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312021101230043 its reverse (340032101120213), we get a palindrome (652053202350256).

The spelling of 312021101230043 in words is "three hundred twelve trillion, twenty-one billion, one hundred one million, two hundred thirty thousand, forty-three".