1303440130 has 48 divisors (see below), whose sum is σ = 2499449400. Its totient is φ = 489192704.

The previous prime is 1303440121. The next prime is 1303440139. The reversal of 1303440130 is 310443031.

It is an interprime number because it is at equal distance from previous prime (1303440121) and next prime (1303440139).

It can be written as a sum of positive squares in 4 ways, for example, as 1302271569 + 1168561 = 36087^2 + 1081^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1303440098 and 1303440107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303440139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278046 + ... + 282694.

Almost surely, 2^1303440130 is an apocalyptic number.

1303440130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1303440130 is a deficient number, since it is larger than the sum of its proper divisors (1196009270).

1303440130 is a wasteful number, since it uses less digits than its factorization.

1303440130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4732 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1303440130 is about 36103.1872554211. The cubic root of 1303440130 is about 1092.3547359952.

Adding to 1303440130 its reverse (310443031), we get a palindrome (1613883161).

The spelling of 1303440130 in words is "one billion, three hundred three million, four hundred forty thousand, one hundred thirty".