65312003 has 2 divisors, whose sum is σ = 65312004. Its totient is φ = 65312002.

The previous prime is 65311979. The next prime is 65312021. The reversal of 65312003 is 30021356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65312003 - 2⁸ = 65311747 is a prime.

It is not a weakly prime, because it can be changed into another prime (65312033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32656001 + 32656002.

It is an arithmetic number, because the mean of its divisors is an integer number (32656002).

Almost surely, 2^65312003 is an apocalyptic number.

65312003 is a deficient number, since it is larger than the sum of its proper divisors (1).

65312003 is an equidigital number, since it uses as much as digits as its factorization.

65312003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 65312003 is about 8081.5841887590. The cubic root of 65312003 is about 402.7148715766.

Adding to 65312003 its reverse (30021356), we get a palindrome (95333359).

The spelling of 65312003 in words is "sixty-five million, three hundred twelve thousand, three".