1313130340 has 12 divisors (see below), whose sum is σ = 2757573756. Its totient is φ = 525252128.

The previous prime is 1313130331. The next prime is 1313130349. The reversal of 1313130340 is 430313131.

It is an interprime number because it is at equal distance from previous prime (1313130331) and next prime (1313130349).

It can be written as a sum of positive squares in 2 ways, for example, as 317980224 + 995150116 = 17832^2 + 31546^2 .

It is a super-2 number, since 2×1313130340² = 3448622579657031200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313130349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32828239 + ... + 32828278.

It is an arithmetic number, because the mean of its divisors is an integer number (229797813).

Almost surely, 2^1313130340 is an apocalyptic number.

1313130340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313130340 is an abundant number, since it is smaller than the sum of its proper divisors (1444443416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313130340 is a wasteful number, since it uses less digits than its factorization.

1313130340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65656526 (or 65656524 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1313130340 is about 36237.1403397122. The cubic root of 1313130340 is about 1095.0550322279.

Adding to 1313130340 its reverse (430313131), we get a palindrome (1743443471).

The spelling of 1313130340 in words is "one billion, three hundred thirteen million, one hundred thirty thousand, three hundred forty".