1130520253 has 4 divisors (see below), whose sum is σ = 1169503740. Its totient is φ = 1091536768.

The previous prime is 1130520233. The next prime is 1130520337. The reversal of 1130520253 is 3520250311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3520250311 = 73 ⋅48222607.

It can be written as a sum of positive squares in 2 ways, for example, as 275659609 + 854860644 = 16603^2 + 29238^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130520253 - 2¹⁷ = 1130389181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130520203) 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, 19491700 + ... + 19491757.

It is an arithmetic number, because the mean of its divisors is an integer number (292375935).

Almost surely, 2^1130520253 is an apocalyptic number.

It is an amenable number.

1130520253 is a deficient number, since it is larger than the sum of its proper divisors (38983487).

1130520253 is an equidigital number, since it uses as much as digits as its factorization.

1130520253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38983486.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1130520253 is about 33623.2100341416. The cubic root of 1130520253 is about 1041.7402609664.

Adding to 1130520253 its reverse (3520250311), we get a palindrome (4650770564).

The spelling of 1130520253 in words is "one billion, one hundred thirty million, five hundred twenty thousand, two hundred fifty-three".