312405103 has 2 divisors, whose sum is σ = 312405104. Its totient is φ = 312405102.

The previous prime is 312405101. The next prime is 312405109. The reversal of 312405103 is 301504213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312405103 - 2¹ = 312405101 is a prime.

Together with 312405101, 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 (312405101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156202551 + 156202552.

It is an arithmetic number, because the mean of its divisors is an integer number (156202552).

Almost surely, 2^312405103 is an apocalyptic number.

312405103 is a deficient number, since it is larger than the sum of its proper divisors (1).

312405103 is an equidigital number, since it uses as much as digits as its factorization.

312405103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 312405103 is about 17674.9852333743. The cubic root of 312405103 is about 678.5357065042.

Adding to 312405103 its reverse (301504213), we get a palindrome (613909316).

The spelling of 312405103 in words is "three hundred twelve million, four hundred five thousand, one hundred three".