1303231113 has 40 divisors (see below), whose sum is σ = 1983776608. Its totient is φ = 855974304.

The previous prime is 1303231091. The next prime is 1303231121. The reversal of 1303231113 is 3111323031.

It is a happy number.

It is not a de Polignac number, because 1303231113 - 2⁵ = 1303231081 is a prime.

It is a super-2 number, since 2×1303231113² = 3396822667782437538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1303231913) 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 39 ways as a sum of consecutive naturals, for example, 1436406 + ... + 1437312.

Almost surely, 2^1303231113 is an apocalyptic number.

It is an amenable number.

1303231113 is a deficient number, since it is larger than the sum of its proper divisors (680545495).

1303231113 is an frugal number, since it uses more digits than its factorization.

1303231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1303231113 is about 36100.2924226384. The cubic root of 1303231113 is about 1092.2963436149.

Adding to 1303231113 its reverse (3111323031), we get a palindrome (4414554144).

The spelling of 1303231113 in words is "one billion, three hundred three million, two hundred thirty-one thousand, one hundred thirteen".