1203022313 has 4 divisors (see below), whose sum is σ = 1205702100. Its totient is φ = 1200342528.

The previous prime is 1203022279. The next prime is 1203022333. The reversal of 1203022313 is 3132203021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 820937104 + 382085209 = 28652^2 + 19547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203022313 - 2²⁴ = 1186245097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203022291 and 1203022300.

It is not an unprimeable number, because it can be changed into a prime (1203022333) 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, 1339220 + ... + 1340117.

It is an arithmetic number, because the mean of its divisors is an integer number (301425525).

Almost surely, 2^1203022313 is an apocalyptic number.

It is an amenable number.

1203022313 is a deficient number, since it is larger than the sum of its proper divisors (2679787).

1203022313 is an equidigital number, since it uses as much as digits as its factorization.

1203022313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679786.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1203022313 is about 34684.6120491494. The cubic root of 1203022313 is about 1063.5499564778.

Adding to 1203022313 its reverse (3132203021), we get a palindrome (4335225334).

It can be divided in two parts, 12030 and 22313, that added together give a palindrome (34343).

The spelling of 1203022313 in words is "one billion, two hundred three million, twenty-two thousand, three hundred thirteen".