1313010730 has 16 divisors (see below), whose sum is σ = 2385104040. Its totient is φ = 520385472.

The previous prime is 1313010703. The next prime is 1313010737. The reversal of 1313010730 is 370103131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1049695201 + 263315529 = 32399^2 + 16227^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313010698 and 1313010707.

It is not an unprimeable number, because it can be changed into a prime (1313010737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601209 + ... + 603388.

Almost surely, 2^1313010730 is an apocalyptic number.

1313010730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313010730 is a deficient number, since it is larger than the sum of its proper divisors (1072093310).

1313010730 is a wasteful number, since it uses less digits than its factorization.

1313010730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204713.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 1313010730 is about 36235.4899235542. The cubic root of 1313010730 is about 1095.0217825431.

Adding to 1313010730 its reverse (370103131), we get a palindrome (1683113861).

The spelling of 1313010730 in words is "one billion, three hundred thirteen million, ten thousand, seven hundred thirty".