1312120310 has 8 divisors (see below), whose sum is σ = 2361816576. Its totient is φ = 524848120.

The previous prime is 1312120289. The next prime is 1312120331. The reversal of 1312120310 is 130212131.

It is an interprime number because it is at equal distance from previous prime (1312120289) and next prime (1312120331).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1312120310² = 3443319415828992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65606006 + ... + 65606025.

It is an arithmetic number, because the mean of its divisors is an integer number (295227072).

Almost surely, 2^1312120310 is an apocalyptic number.

1312120310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312120310 is a deficient number, since it is larger than the sum of its proper divisors (1049696266).

1312120310 is a wasteful number, since it uses less digits than its factorization.

1312120310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131212038.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312120310 is about 36223.2012665916. The cubic root of 1312120310 is about 1094.7741964008.

Adding to 1312120310 its reverse (130212131), we get a palindrome (1442332441).

The spelling of 1312120310 in words is "one billion, three hundred twelve million, one hundred twenty thousand, three hundred ten".