312120030283 has 2 divisors, whose sum is σ = 312120030284. Its totient is φ = 312120030282.

The previous prime is 312120030251. The next prime is 312120030403. The reversal of 312120030283 is 382030021213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312120030283 - 2⁵ = 312120030251 is a prime.

It is not a weakly prime, because it can be changed into another prime (312120030203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156060015141 + 156060015142.

It is an arithmetic number, because the mean of its divisors is an integer number (156060015142).

Almost surely, 2^312120030283 is an apocalyptic number.

312120030283 is a deficient number, since it is larger than the sum of its proper divisors (1).

312120030283 is an equidigital number, since it uses as much as digits as its factorization.

312120030283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 312120030283 its reverse (382030021213), we get a palindrome (694150051496).

The spelling of 312120030283 in words is "three hundred twelve billion, one hundred twenty million, thirty thousand, two hundred eighty-three".