1312210320329 has 16 divisors (see below), whose sum is σ = 1380973473792. Its totient is φ = 1244436355008.

The previous prime is 1312210320319. The next prime is 1312210320347. The reversal of 1312210320329 is 9230230122131.

It is a cyclic number.

It is not a de Polignac number, because 1312210320329 - 2⁸ = 1312210320073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312210320319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4210607 + ... + 4511499.

It is an arithmetic number, because the mean of its divisors is an integer number (86310842112).

Almost surely, 2^{1312210320329} is an apocalyptic number.

It is an amenable number.

1312210320329 is a deficient number, since it is larger than the sum of its proper divisors (68763153463).

1312210320329 is a wasteful number, since it uses less digits than its factorization.

1312210320329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302536.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 1312210320329 in words is "one trillion, three hundred twelve billion, two hundred ten million, three hundred twenty thousand, three hundred twenty-nine".