1030440311 has 4 divisors (see below), whose sum is σ = 1030882824. Its totient is φ = 1029997800.

The previous prime is 1030440287. The next prime is 1030440337. The reversal of 1030440311 is 1130440301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1130440301 = 173 ⋅6534337.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030440311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1030440311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030440391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217745 + ... + 222426.

It is an arithmetic number, because the mean of its divisors is an integer number (257720706).

Almost surely, 2^1030440311 is an apocalyptic number.

1030440311 is a deficient number, since it is larger than the sum of its proper divisors (442513).

1030440311 is an equidigital number, since it uses as much as digits as its factorization.

1030440311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442512.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1030440311 is about 32100.4721304843. The cubic root of 1030440311 is about 1010.0455199561.

Adding to 1030440311 its reverse (1130440301), we get a palindrome (2160880612).

The spelling of 1030440311 in words is "one billion, thirty million, four hundred forty thousand, three hundred eleven".