311140003 has 2 divisors, whose sum is σ = 311140004. Its totient is φ = 311140002.

The previous prime is 311139977. The next prime is 311140007. The reversal of 311140003 is 300041113.

It is a strong prime.

It is an emirp because it is prime and its reverse (300041113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311140003 is a prime.

It is not a weakly prime, because it can be changed into another prime (311140007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155570001 + 155570002.

It is an arithmetic number, because the mean of its divisors is an integer number (155570002).

Almost surely, 2^311140003 is an apocalyptic number.

311140003 is a deficient number, since it is larger than the sum of its proper divisors (1).

311140003 is an equidigital number, since it uses as much as digits as its factorization.

311140003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 311140003 is about 17639.1610628170. The cubic root of 311140003 is about 677.6185459968.

Adding to 311140003 its reverse (300041113), we get a palindrome (611181116).

The spelling of 311140003 in words is "three hundred eleven million, one hundred forty thousand, three".