1130543213 has 4 divisors (see below), whose sum is σ = 1130640060. Its totient is φ = 1130446368.

The previous prime is 1130543207. The next prime is 1130543243. The reversal of 1130543213 is 3123450311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3123450311 = 227 ⋅13759693.

It can be written as a sum of positive squares in 2 ways, for example, as 1086493444 + 44049769 = 32962^2 + 6637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130543213 - 2⁸ = 1130542957 is a prime.

It is a super-4 number, since 4×1130543213⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130543203) 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, 28058 + ... + 55211.

It is an arithmetic number, because the mean of its divisors is an integer number (282660015).

Almost surely, 2^1130543213 is an apocalyptic number.

It is an amenable number.

1130543213 is a deficient number, since it is larger than the sum of its proper divisors (96847).

1130543213 is an equidigital number, since it uses as much as digits as its factorization.

1130543213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96846.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1130543213 is about 33623.5514632229. The cubic root of 1130543213 is about 1041.7473132342.

Adding to 1130543213 its reverse (3123450311), we get a palindrome (4253993524).

The spelling of 1130543213 in words is "one billion, one hundred thirty million, five hundred forty-three thousand, two hundred thirteen".