312130003 has 2 divisors, whose sum is σ = 312130004. Its totient is φ = 312130002.

The previous prime is 312129953. The next prime is 312130009. The reversal of 312130003 is 300031213.

It is a strong prime.

It is an emirp because it is prime and its reverse (300031213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312130003 - 2²¹ = 310032851 is a prime.

It is not a weakly prime, because it can be changed into another prime (312130009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156065001 + 156065002.

It is an arithmetic number, because the mean of its divisors is an integer number (156065002).

Almost surely, 2^312130003 is an apocalyptic number.

312130003 is a deficient number, since it is larger than the sum of its proper divisors (1).

312130003 is an equidigital number, since it uses as much as digits as its factorization.

312130003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 312130003 is about 17667.2013346766. The cubic root of 312130003 is about 678.3364780136.

Adding to 312130003 its reverse (300031213), we get a palindrome (612161216).

It can be divided in two parts, 3121 and 30003, that added together give a square (33124 = 182²).

The spelling of 312130003 in words is "three hundred twelve million, one hundred thirty thousand, three".