1123002313 has 4 divisors (see below), whose sum is σ = 1123762068. Its totient is φ = 1122242560.

The previous prime is 1123002299. The next prime is 1123002323. The reversal of 1123002313 is 3132003211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3132003211 = 17 ⋅184235483.

It can be written as a sum of positive squares in 2 ways, for example, as 625400064 + 497602249 = 25008^2 + 22307^2 .

It is not a de Polignac number, because 1123002313 - 2¹⁷ = 1122871241 is a prime.

It is a super-2 number, since 2×1123002313² = 2522268390006699938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123002323) 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, 377656 + ... + 380617.

It is an arithmetic number, because the mean of its divisors is an integer number (280940517).

Almost surely, 2^1123002313 is an apocalyptic number.

It is an amenable number.

1123002313 is a deficient number, since it is larger than the sum of its proper divisors (759755).

1123002313 is an equidigital number, since it uses as much as digits as its factorization.

1123002313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759754.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1123002313 is about 33511.2266710725. The cubic root of 1123002313 is about 1039.4259384256.

Adding to 1123002313 its reverse (3132003211), we get a palindrome (4255005524).

The spelling of 1123002313 in words is "one billion, one hundred twenty-three million, two thousand, three hundred thirteen".