1312210320306 has 32 divisors (see below), whose sum is σ = 2739475289088. Its totient is φ = 418240851600.

The previous prime is 1312210320167. The next prime is 1312210320319. The reversal of 1312210320306 is 6030230122131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248420 + ... + 2045231.

It is an arithmetic number, because the mean of its divisors is an integer number (85608602784).

Almost surely, 2^{1312210320306} is an apocalyptic number.

1312210320306 is an abundant number, since it is smaller than the sum of its proper divisors (1427264968782).

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

1312210320306 is a wasteful number, since it uses less digits than its factorization.

1312210320306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296566.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1312210320306 its reverse (6030230122131), we get a palindrome (7342440442437).

The spelling of 1312210320306 in words is "one trillion, three hundred twelve billion, two hundred ten million, three hundred twenty thousand, three hundred six".