1030203011 has 4 divisors (see below), whose sum is σ = 1052122272. Its totient is φ = 1008283752.

The previous prime is 1030203007. The next prime is 1030203017. The reversal of 1030203011 is 1103020301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1030203011 - 2² = 1030203007 is a prime.

It is a super-2 number, since 2×1030203011² = 2122636487746932242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030202983 and 1030203001.

It is not an unprimeable number, because it can be changed into a prime (1030203017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10959560 + ... + 10959653.

It is an arithmetic number, because the mean of its divisors is an integer number (263030568).

Almost surely, 2^1030203011 is an apocalyptic number.

1030203011 is a deficient number, since it is larger than the sum of its proper divisors (21919261).

1030203011 is an equidigital number, since it uses as much as digits as its factorization.

1030203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21919260.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1030203011 is about 32096.7757103420. The cubic root of 1030203011 is about 1009.9679795750.

Adding to 1030203011 its reverse (1103020301), we get a palindrome (2133223312).

The spelling of 1030203011 in words is "one billion, thirty million, two hundred three thousand, eleven".