1131313202 has 4 divisors (see below), whose sum is σ = 1696969806. Its totient is φ = 565656600.

The previous prime is 1131313201. The next prime is 1131313237. The reversal of 1131313202 is 2023131311.

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

It can be written as a sum of positive squares in only one way, i.e., 704849401 + 426463801 = 26549^2 + 20651^2 .

It is a super-2 number, since 2×1131313202² = 2559739122038985608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131313201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282828299 + ... + 282828302.

Almost surely, 2^1131313202 is an apocalyptic number.

1131313202 is a deficient number, since it is larger than the sum of its proper divisors (565656604).

1131313202 is an equidigital number, since it uses as much as digits as its factorization.

1131313202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565656603.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1131313202 is about 33634.9996580942. Note that the first 3 decimals coincide. The cubic root of 1131313202 is about 1041.9837635606.

Adding to 1131313202 its reverse (2023131311), we get a palindrome (3154444513).

The spelling of 1131313202 in words is "one billion, one hundred thirty-one million, three hundred thirteen thousand, two hundred two".