1312031210 has 32 divisors (see below), whose sum is σ = 2733212160. Its totient is φ = 444143232.

The previous prime is 1312031191. The next prime is 1312031213. The reversal of 1312031210 is 121302131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1312031213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113099 + ... + 124158.

It is an arithmetic number, because the mean of its divisors is an integer number (85412880).

Almost surely, 2^1312031210 is an apocalyptic number.

1312031210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312031210 is an abundant number, since it is smaller than the sum of its proper divisors (1421180950).

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

1312031210 is a wasteful number, since it uses less digits than its factorization.

1312031210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237350.

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

The square root of 1312031210 is about 36221.9713709787. The cubic root of 1312031210 is about 1094.7494154951.

Adding to 1312031210 its reverse (121302131), we get a palindrome (1433333341).

The spelling of 1312031210 in words is "one billion, three hundred twelve million, thirty-one thousand, two hundred ten".