1312071210 has 48 divisors (see below), whose sum is σ = 3537739296. Its totient is φ = 349885008.

The previous prime is 1312071199. The next prime is 1312071227. The reversal of 1312071210 is 121702131.

It is a happy number.

It is a super-2 number, since 2×1312071210² = 3443061720221728200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267544 + ... + 272403.

It is an arithmetic number, because the mean of its divisors is an integer number (73702902).

Almost surely, 2^1312071210 is an apocalyptic number.

1312071210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312071210 is an abundant number, since it is smaller than the sum of its proper divisors (2225668086).

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

1312071210 is an equidigital number, since it uses as much as digits as its factorization.

1312071210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539969 (or 539957 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1312071210 is about 36222.5235178335. The cubic root of 1312071210 is about 1094.7605406196.

Adding to 1312071210 its reverse (121702131), we get a palindrome (1433773341).

The spelling of 1312071210 in words is "one billion, three hundred twelve million, seventy-one thousand, two hundred ten".