1312000321211 has 24 divisors (see below), whose sum is σ = 1432890385344. Its totient is φ = 1200388452480.

The previous prime is 1312000321201. The next prime is 1312000321213. The reversal of 1312000321211 is 1121230002131.

It is not a de Polignac number, because 1312000321211 - 2¹⁰ = 1312000320187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312000321211.

It is not an unprimeable number, because it can be changed into a prime (1312000321213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2371916 + ... + 2872278.

It is an arithmetic number, because the mean of its divisors is an integer number (59703766056).

Almost surely, 2^{1312000321211} is an apocalyptic number.

1312000321211 is a deficient number, since it is larger than the sum of its proper divisors (120890064133).

1312000321211 is a wasteful number, since it uses less digits than its factorization.

1312000321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500651 (or 500634 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1312000321211 its reverse (1121230002131), we get a palindrome (2433230323342).

The spelling of 1312000321211 in words is "one trillion, three hundred twelve billion, three hundred twenty-one thousand, two hundred eleven".