312400034230189 has 2 divisors, whose sum is σ = 312400034230190. Its totient is φ = 312400034230188.

The previous prime is 312400034230187. The next prime is 312400034230331. The reversal of 312400034230189 is 981032430004213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168409874062089 + 143990160168100 = 12977283^2 + 11999590^2 .

It is an emirp because it is prime and its reverse (981032430004213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312400034230189 - 2¹ = 312400034230187 is a prime.

Together with 312400034230187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312400034230187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156200017115094 + 156200017115095.

It is an arithmetic number, because the mean of its divisors is an integer number (156200017115095).

Almost surely, 2^{312400034230189} is an apocalyptic number.

It is an amenable number.

312400034230189 is a deficient number, since it is larger than the sum of its proper divisors (1).

312400034230189 is an equidigital number, since it uses as much as digits as its factorization.

312400034230189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 312400034230189 in words is "three hundred twelve trillion, four hundred billion, thirty-four million, two hundred thirty thousand, one hundred eighty-nine".