1030311 has 6 divisors (see below), whose sum is σ = 1488240. Its totient is φ = 686868.

The previous prime is 1030307. The next prime is 1030349. The reversal of 1030311 is 1130301.

It is not a de Polignac number, because 1030311 - 2² = 1030307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 114479 = 1030311 / (1 + 0 + 3 + 0 + 3 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 1030293 and 1030302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57231 + ... + 57248.

It is an arithmetic number, because the mean of its divisors is an integer number (248040).

2^1030311 is an apocalyptic number.

1030311 is a deficient number, since it is larger than the sum of its proper divisors (457929).

1030311 is a wasteful number, since it uses less digits than its factorization.

1030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114485 (or 114482 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 1030311 is about 1015.0423636479. The cubic root of 1030311 is about 101.0003267643. Note that the first 3 decimals are identical.

Adding to 1030311 its reverse (1130301), we get a palindrome (2160612).

The spelling of 1030311 in words is "one million, thirty thousand, three hundred eleven".