1312311230 has 32 divisors (see below), whose sum is σ = 2492596800. Its totient is φ = 496452352.

The previous prime is 1312311199. The next prime is 1312311241. The reversal of 1312311230 is 321132131.

It is a super-2 number, since 2×1312311230² = 3444321528768225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312311199 and 1312311208.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11585 + ... + 52524.

It is an arithmetic number, because the mean of its divisors is an integer number (77893650).

Almost surely, 2^1312311230 is an apocalyptic number.

1312311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312311230 is a deficient number, since it is larger than the sum of its proper divisors (1180285570).

1312311230 is a wasteful number, since it uses less digits than its factorization.

1312311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64228.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1312311230 is about 36225.8364982784. The cubic root of 1312311230 is about 1094.8272921805.

Adding to 1312311230 its reverse (321132131), we get a palindrome (1633443361).

The spelling of 1312311230 in words is "one billion, three hundred twelve million, three hundred eleven thousand, two hundred thirty".