1312003130 has 16 divisors (see below), whose sum is σ = 2384989704. Its totient is φ = 519604800.

The previous prime is 1312003127. The next prime is 1312003151. The reversal of 1312003130 is 313002131.

It can be written as a sum of positive squares in 4 ways, for example, as 1275846961 + 36156169 = 35719^2 + 6013^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648497 + ... + 650516.

Almost surely, 2^1312003130 is an apocalyptic number.

1312003130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312003130 is a deficient number, since it is larger than the sum of its proper divisors (1072986574).

1312003130 is a wasteful number, since it uses less digits than its factorization.

1312003130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299121.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1312003130 is about 36221.5837588585. The cubic root of 1312003130 is about 1094.7416055226.

Adding to 1312003130 its reverse (313002131), we get a palindrome (1625005261).

Subtracting from 1312003130 its reverse (313002131), we obtain a palindrome (999000999).

The spelling of 1312003130 in words is "one billion, three hundred twelve million, three thousand, one hundred thirty".