312703 has 2 divisors, whose sum is σ = 312704. Its totient is φ = 312702.

The previous prime is 312701. The next prime is 312709. The reversal of 312703 is 307213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312703 - 2¹ = 312701 is a prime.

Together with 312701, 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 (312701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156351 + 156352.

It is an arithmetic number, because the mean of its divisors is an integer number (156352).

2³¹²⁷⁰³ is an apocalyptic number.

312703 is a deficient number, since it is larger than the sum of its proper divisors (1).

312703 is an equidigital number, since it uses as much as digits as its factorization.

312703 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 16.

The square root of 312703 is about 559.1985336175. The cubic root of 312703 is about 67.8751312816.

Adding to 312703 its reverse (307213), we get a palindrome (619916).

The spelling of 312703 in words is "three hundred twelve thousand, seven hundred three", and thus it is an iban number.