1011430243 has 4 divisors (see below), whose sum is σ = 1011613720. Its totient is φ = 1011246768.

The previous prime is 1011430237. The next prime is 1011430247. The reversal of 1011430243 is 3420341101.

1011430243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3420341101 = 997 ⋅3430633.

It is a cyclic number.

It is not a de Polignac number, because 1011430243 - 2²⁹ = 474559331 is a prime.

It is a super-2 number, since 2×1011430243² = 2045982272910078098, which contains 22 as substring.

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 1011430243.

It is not an unprimeable number, because it can be changed into a prime (1011430247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83205 + ... + 94582.

It is an arithmetic number, because the mean of its divisors is an integer number (252903430).

Almost surely, 2^1011430243 is an apocalyptic number.

1011430243 is a deficient number, since it is larger than the sum of its proper divisors (183477).

1011430243 is an equidigital number, since it uses as much as digits as its factorization.

1011430243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183476.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1011430243 is about 31802.9911014672. The cubic root of 1011430243 is about 1003.7956557693.

Adding to 1011430243 its reverse (3420341101), we get a palindrome (4431771344).

The spelling of 1011430243 in words is "one billion, eleven million, four hundred thirty thousand, two hundred forty-three".