312113071 has 2 divisors, whose sum is σ = 312113072. Its totient is φ = 312113070.

The previous prime is 312113029. The next prime is 312113077. The reversal of 312113071 is 170311213.

It is a strong prime.

It is an emirp because it is prime and its reverse (170311213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312113071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312113077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156056535 + 156056536.

It is an arithmetic number, because the mean of its divisors is an integer number (156056536).

Almost surely, 2^312113071 is an apocalyptic number.

312113071 is a deficient number, since it is larger than the sum of its proper divisors (1).

312113071 is an equidigital number, since it uses as much as digits as its factorization.

312113071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 312113071 is about 17666.7221351330. The cubic root of 312113071 is about 678.3242119697.

Adding to 312113071 its reverse (170311213), we get a palindrome (482424284).

The spelling of 312113071 in words is "three hundred twelve million, one hundred thirteen thousand, seventy-one".